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1 /*
2 linphone
3 Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
4
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18 */
19
20 #define _GNU_SOURCE
21
22 #include "linphonecore.h"
23 #include "sipsetup.h"
24 #include "lpconfig.h"
25 #include "private.h"
26
27 #include <ortp/telephonyevents.h>
28 #include <ortp/zrtp.h>
29 #include "mediastreamer2/mediastream.h"
30 #include "mediastreamer2/mseventqueue.h"
31 #include "mediastreamer2/msvolume.h"
32 #include "mediastreamer2/msequalizer.h"
33 #include "mediastreamer2/dtmfgen.h"
34
35 #ifdef INET6
36 #ifndef WIN32
37 #include <netdb.h>
38 #endif
39 #endif
40
41 #ifdef HAVE_CONFIG_H
42 #include "config.h"
43 #endif
44
45 /*#define UNSTANDART_GSM_11K 1*/
46
47 #define ROOT_CA_FILE PACKAGE_DATA_DIR "/linphone/rootca.pem"
48
49 static const char *liblinphone_version=LIBLINPHONE_VERSION;
50 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
51 static void linphone_core_run_hooks(LinphoneCore *lc);
52 static void linphone_core_free_hooks(LinphoneCore *lc);
53
54 #include "enum.h"
55 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
56 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result);
57 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
58
59 /* relative path where is stored local ring*/
60 #define LOCAL_RING "rings/oldphone.wav"
61 /* same for remote ring (ringback)*/
62 #define REMOTE_RING "ringback.wav"
63 #define HOLD_MUSIC "rings/toy-mono.wav"
64
65
66 extern SalCallbacks linphone_sal_callbacks;
67
68 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
69 {
70   obj->_func=func;
71   obj->_user_data=ud;
72 }
73
74 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
75         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
76         return 0;
77 }
78
79
80 /*prevent a gcc bug with %c*/
81 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
82 #if !defined(_WIN32_WCE)
83         return strftime(s, max, fmt, tm);
84 #else
85         return 0;
86         /*FIXME*/
87 #endif /*_WIN32_WCE*/
88 }
89
90 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
91         struct tm loctime;
92 #ifdef WIN32
93 #if !defined(_WIN32_WCE)
94         loctime=*localtime(&start_time);
95         /*FIXME*/
96 #endif /*_WIN32_WCE*/
97 #else
98         localtime_r(&start_time,&loctime);
99 #endif
100         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
101 }
102
103 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
104         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
105         cl->dir=call->dir;
106         cl->start_date_time=call->start_time;
107         set_call_log_date(cl,cl->start_date_time);
108         cl->from=from;
109         cl->to=to;
110     cl->status=LinphoneCallAborted; /*default status*/
111         return cl;
112 }
113
114 void call_logs_write_to_config_file(LinphoneCore *lc){
115         MSList *elem;
116         char logsection[32];
117         int i;
118         char *tmp;
119         LpConfig *cfg=lc->config;
120
121         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
122
123         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
124                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
125                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
126                 lp_config_clean_section(cfg,logsection);
127                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
128                 lp_config_set_int(cfg,logsection,"status",cl->status);
129                 tmp=linphone_address_as_string(cl->from);
130                 lp_config_set_string(cfg,logsection,"from",tmp);
131                 ms_free(tmp);
132                 tmp=linphone_address_as_string(cl->to);
133                 lp_config_set_string(cfg,logsection,"to",tmp);
134                 ms_free(tmp);
135                 if (cl->start_date_time)
136                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
137                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
138                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
139                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
140                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
141                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
142         }
143         for(;i<lc->max_call_logs;++i){
144                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
145                 lp_config_clean_section(cfg,logsection);
146         }
147 }
148
149 static time_t string_to_time(const char *date){
150 #ifndef WIN32
151         struct tm tmtime={0};
152         strptime(date,"%c",&tmtime);
153         return mktime(&tmtime);
154 #else
155         return 0;
156 #endif
157 }
158
159 static void call_logs_read_from_config_file(LinphoneCore *lc){
160         char logsection[32];
161         int i;
162         const char *tmp;
163         uint64_t sec;
164         LpConfig *cfg=lc->config;
165         for(i=0;;++i){
166                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
167                 if (lp_config_has_section(cfg,logsection)){
168                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
169                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
170                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
171                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
172                         if (tmp) cl->from=linphone_address_new(tmp);
173                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
174                         if (tmp) cl->to=linphone_address_new(tmp);
175                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
176                         if (sec) {
177                                 /*new call log format with date expressed in seconds */
178                                 cl->start_date_time=(time_t)sec;
179                                 set_call_log_date(cl,cl->start_date_time);
180                         }else{
181                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
182                                 if (tmp) {
183                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
184                                         cl->start_date_time=string_to_time(cl->start_date);
185                                 }
186                         }
187                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
188                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
189                         if (tmp) cl->refkey=ms_strdup(tmp);
190                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
191                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
192                         lc->call_logs=ms_list_append(lc->call_logs,cl);
193                 }else break;
194         }
195 }
196
197
198
199 /**
200  * @addtogroup call_logs
201  * @{
202 **/
203
204 /**
205  * Returns a human readable string describing the call.
206  *
207  * @note: the returned char* must be freed by the application (use ms_free()).
208 **/
209 char * linphone_call_log_to_str(LinphoneCallLog *cl){
210         char *status;
211         char *tmp;
212         char *from=linphone_address_as_string (cl->from);
213         char *to=linphone_address_as_string (cl->to);
214         switch(cl->status){
215                 case LinphoneCallAborted:
216                         status=_("aborted");
217                         break;
218                 case LinphoneCallSuccess:
219                         status=_("completed");
220                         break;
221                 case LinphoneCallMissed:
222                         status=_("missed");
223                         break;
224                 default:
225                         status="unknown";
226         }
227         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
228                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
229                         cl->start_date,
230                         from,
231                         to,
232                         status,
233                         cl->duration/60,
234                         cl->duration%60);
235         ms_free(from);
236         ms_free(to);
237         return tmp;
238 }
239
240 /**
241  * Returns RTP statistics computed locally regarding the call.
242  *
243 **/
244 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
245         return &cl->local_stats;
246 }
247
248 /**
249  * Returns RTP statistics computed by remote end and sent back via RTCP.
250  *
251  * @note Not implemented yet.
252 **/
253 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
254         return &cl->remote_stats;
255 }
256
257 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
258         cl->user_pointer=up;
259 }
260
261 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
262         return cl->user_pointer;
263 }
264
265
266
267 /**
268  * Associate a persistent reference key to the call log.
269  *
270  * The reference key can be for example an id to an external database.
271  * It is stored in the config file, thus can survive to process exits/restarts.
272  *
273 **/
274 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
275         if (cl->refkey!=NULL){
276                 ms_free(cl->refkey);
277                 cl->refkey=NULL;
278         }
279         if (refkey) cl->refkey=ms_strdup(refkey);
280 }
281
282 /**
283  * Get the persistent reference key associated to the call log.
284  *
285  * The reference key can be for example an id to an external database.
286  * It is stored in the config file, thus can survive to process exits/restarts.
287  *
288 **/
289 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
290         return cl->refkey;
291 }
292
293 /** @} */
294
295 void linphone_call_log_destroy(LinphoneCallLog *cl){
296         if (cl->from!=NULL) linphone_address_destroy(cl->from);
297         if (cl->to!=NULL) linphone_address_destroy(cl->to);
298         if (cl->refkey!=NULL) ms_free(cl->refkey);
299         ms_free(cl);
300 }
301
302 /**
303  * Returns TRUE if the LinphoneCall asked to autoanswer
304  *
305 **/
306 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
307         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
308         if(call)
309                 return sal_call_autoanswer_asked(call->op);
310         else
311                 return FALSE;
312 }
313
314 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
315         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
316         if (call)  return linphone_call_get_duration(call);
317         return -1;
318 }
319
320 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
321         LinphoneCall *call=linphone_core_get_current_call(lc);
322         if (call==NULL) return NULL;
323         return linphone_call_get_remote_address(call);
324 }
325
326 /**
327  * Enable logs in supplied FILE*.
328  *
329  * @ingroup misc
330  *
331  * @param file a C FILE* where to fprintf logs. If null stdout is used.
332  *
333 **/
334 void linphone_core_enable_logs(FILE *file){
335         if (file==NULL) file=stdout;
336         ortp_set_log_file(file);
337         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
338 }
339
340 /**
341  * Enable logs through the user's supplied log callback.
342  *
343  * @ingroup misc
344  *
345  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
346  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
347  *
348 **/
349 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
350         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
351         ortp_set_log_handler(logfunc);
352 }
353
354 /**
355  * Entirely disable logging.
356  *
357  * @ingroup misc
358 **/
359 void linphone_core_disable_logs(){
360         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
361 }
362
363
364 static void net_config_read (LinphoneCore *lc)
365 {
366         int tmp;
367         const char *tmpstr;
368         LpConfig *config=lc->config;
369
370         lc->net_conf.nat_address_ip = NULL;
371         tmp=lp_config_get_int(config,"net","download_bw",0);
372         linphone_core_set_download_bandwidth(lc,tmp);
373         tmp=lp_config_get_int(config,"net","upload_bw",0);
374         linphone_core_set_upload_bandwidth(lc,tmp);
375         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
376         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
377         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
378         linphone_core_set_nat_address(lc,tmpstr);
379         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
380         linphone_core_set_firewall_policy(lc,tmp);
381         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
382         lc->net_conf.nat_sdp_only=tmp;
383         tmp=lp_config_get_int(lc->config,"net","mtu",0);
384         linphone_core_set_mtu(lc,tmp);
385         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
386         linphone_core_set_download_ptime(lc,tmp);
387
388 }
389
390 static void build_sound_devices_table(LinphoneCore *lc){
391         const char **devices;
392         const char **old;
393         int ndev;
394         int i;
395         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
396         ndev=ms_list_size(elem);
397         devices=ms_malloc((ndev+1)*sizeof(const char *));
398         for (i=0;elem!=NULL;elem=elem->next,i++){
399                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
400         }
401         devices[ndev]=NULL;
402         old=lc->sound_conf.cards;
403         lc->sound_conf.cards=devices;
404         if (old!=NULL) ms_free(old);
405 }
406
407 static void sound_config_read(LinphoneCore *lc)
408 {
409         int tmp;
410         const char *tmpbuf;
411         const char *devid;
412         float gain=0;
413 #ifdef __linux
414         /*alsadev let the user use custom alsa device within linphone*/
415         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
416         if (devid){
417                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
418                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
419         }
420         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
421         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
422 #endif
423         /* retrieve all sound devices */
424         build_sound_devices_table(lc);
425
426         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
427         linphone_core_set_playback_device(lc,devid);
428
429         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
430         linphone_core_set_ringer_device(lc,devid);
431
432         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
433         linphone_core_set_capture_device(lc,devid);
434
435 /*
436         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
437         linphone_core_set_play_level(lc,tmp);
438         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
439         linphone_core_set_ring_level(lc,tmp);
440         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
441         linphone_core_set_rec_level(lc,tmp);
442         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
443         linphone_core_set_sound_source(lc,tmpbuf[0]);
444 */
445
446         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
447         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
448         if (ortp_file_exist(tmpbuf)==-1) {
449                 ms_warning("%s does not exist",tmpbuf);
450                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
451         }
452         if (strstr(tmpbuf,".wav")==NULL){
453                 /* it currently uses old sound files, so replace them */
454                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
455         }
456         linphone_core_set_ring(lc,tmpbuf);
457
458         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
459         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
460         if (ortp_file_exist(tmpbuf)==-1){
461                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
462         }
463         if (strstr(tmpbuf,".wav")==NULL){
464                 /* it currently uses old sound files, so replace them */
465                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
466         }
467         linphone_core_set_ringback(lc,tmpbuf);
468
469         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
470         check_sound_device(lc);
471         lc->sound_conf.latency=0;
472 #ifndef __ios 
473     tmp=TRUE;
474 #else
475     tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
476 #endif
477     tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
478         linphone_core_enable_echo_cancellation(lc,tmp);
479         linphone_core_enable_echo_limiter(lc,
480                 lp_config_get_int(lc->config,"sound","echolimiter",0));
481         linphone_core_enable_agc(lc,
482                 lp_config_get_int(lc->config,"sound","agc",0));
483
484         gain=lp_config_get_float(lc->config,"sound","playback_gain_db",0);
485         linphone_core_set_playback_gain_db (lc,gain);
486
487         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
488
489         /*just parse requested stream feature once at start to print out eventual errors*/
490         linphone_core_get_audio_features(lc);
491 }
492
493 static void sip_config_read(LinphoneCore *lc)
494 {
495         char *contact;
496         const char *tmpstr;
497         LCSipTransports tr;
498         int i,tmp;
499         int ipv6;
500         int random_port;
501
502         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
503         linphone_core_set_use_info_for_dtmf(lc,tmp);
504
505         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
506                 sal_use_session_timers(lc->sal,200);
507         }
508
509         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
510         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
511         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
512         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
513
514         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",0);
515         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
516
517         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
518         if (ipv6==-1){
519                 ipv6=0;
520         }
521         linphone_core_enable_ipv6(lc,ipv6);
522         memset(&tr,0,sizeof(tr));
523         
524         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
525         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
526         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
527         
528         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
529                 random_port=(0xDFFF&random())+1024;
530         else random_port=0;
531         
532         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
533                 tr.udp_port=5060;
534         }       
535         
536         if (tr.udp_port>0 && random_port){
537                 tr.udp_port=random_port;
538                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
539         }else if (tr.tcp_port>0 && random_port){
540                 tr.tcp_port=random_port;
541                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
542         }else if (tr.tls_port>0 && random_port){
543                 tr.tls_port=random_port;
544                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
545         } 
546
547 #ifdef __linux
548         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
549 #else
550         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
551 #endif
552         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
553         /*start listening on ports*/
554         linphone_core_set_sip_transports(lc,&tr);
555
556         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
557         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
558                 const char *hostname=NULL;
559                 const char *username=NULL;
560 #ifdef HAVE_GETENV
561                 hostname=getenv("HOST");
562                 username=getenv("USER");
563                 if (hostname==NULL) hostname=getenv("HOSTNAME");
564 #endif /*HAVE_GETENV*/
565                 if (hostname==NULL)
566                         hostname="unknown-host";
567                 if (username==NULL){
568                         username="toto";
569                 }
570                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
571                 linphone_core_set_primary_contact(lc,contact);
572                 ms_free(contact);
573         }
574
575         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
576         linphone_core_set_guess_hostname(lc,tmp);
577
578
579         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
580         linphone_core_set_inc_timeout(lc,tmp);
581
582         /* get proxies config */
583         for(i=0;; i++){
584                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
585                 if (cfg!=NULL){
586                         linphone_core_add_proxy_config(lc,cfg);
587                 }else{
588                         break;
589                 }
590         }
591         /* get the default proxy */
592         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
593         linphone_core_set_default_proxy_index(lc,tmp);
594
595         /* read authentication information */
596         for(i=0;; i++){
597                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
598                 if (ai!=NULL){
599                         linphone_core_add_auth_info(lc,ai);
600                         linphone_auth_info_destroy(ai);
601                 }else{
602                         break;
603                 }
604         }
605         /*this is to filter out unsupported encryption schemes*/
606         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
607
608         /*for tuning or test*/
609         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
610         lc->sip_conf.register_only_when_network_is_up=
611                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
612         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
613         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
614         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
615         sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
616         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
617         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
618         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
619 }
620
621 static void rtp_config_read(LinphoneCore *lc)
622 {
623         int port;
624         int jitt_comp;
625         int nortp_timeout;
626         bool_t rtp_no_xmit_on_audio_mute;
627         bool_t adaptive_jitt_comp_enabled;
628
629         port=lp_config_get_int(lc->config,"rtp","audio_rtp_port",7078);
630         linphone_core_set_audio_port(lc,port);
631
632         port=lp_config_get_int(lc->config,"rtp","video_rtp_port",9078);
633         if (port==0) port=9078;
634         linphone_core_set_video_port(lc,port);
635
636         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
637         linphone_core_set_audio_jittcomp(lc,jitt_comp);
638         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
639         if (jitt_comp==0) jitt_comp=60;
640         linphone_core_set_video_jittcomp(lc,jitt_comp);
641         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
642         linphone_core_set_nortp_timeout(lc,nortp_timeout);
643         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
644         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
645         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
646         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
647         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
648         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
649 }
650
651 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
652         PayloadType *candidate=NULL;
653         int i;
654         PayloadType *it;
655         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
656                 it=rtp_profile_get_payload(prof,i);
657                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
658                         && (clock_rate==it->clock_rate || clock_rate<=0)
659                         && (channels==it->channels || channels<=0) ){
660                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
661                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
662                                 /*exact match*/
663                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
664                                 return it;
665                         }else {
666                                 if (candidate){
667                                         if (it->recv_fmtp==NULL) candidate=it;
668                                 }else candidate=it;
669                         }
670                 }
671         }
672         if (candidate && recv_fmtp){
673                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
674         }
675         return candidate;
676 }
677
678 static bool_t get_codec(LpConfig *config, const char* type, int index, PayloadType **ret){
679         char codeckey[50];
680         const char *mime,*fmtp;
681         int rate,channels,enabled;
682         PayloadType *pt;
683
684         *ret=NULL;
685         snprintf(codeckey,50,"%s_%i",type,index);
686         mime=lp_config_get_string(config,codeckey,"mime",NULL);
687         if (mime==NULL || strlen(mime)==0 ) return FALSE;
688
689         rate=lp_config_get_int(config,codeckey,"rate",8000);
690         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
691         channels=lp_config_get_int(config,codeckey,"channels",0);
692         enabled=lp_config_get_int(config,codeckey,"enabled",1);
693         pt=find_payload(&av_profile,mime,rate,channels,fmtp);
694         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
695         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
696         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
697                         mime,rate,fmtp ? fmtp : "");
698         *ret=pt;
699         return TRUE;
700 }
701
702 #define RANK_END 10000
703 static const char *codec_pref_order[]={
704         "SILK",
705         "speex",
706         "iLBC",
707         "amr",
708         "gsm",
709         "pcmu",
710         "pcma",
711         "VP8",
712         "H264",
713         "MP4V-ES",
714         "H263-1998",
715         NULL,
716 };
717
718 static int find_codec_rank(const char *mime){
719         int i;
720         for(i=0;codec_pref_order[i]!=NULL;++i){
721                 if (strcasecmp(codec_pref_order[i],mime)==0)
722                         return i;
723         }
724         return RANK_END;
725 }
726
727 static int codec_compare(const PayloadType *a, const PayloadType *b){
728         int ra,rb;
729         ra=find_codec_rank(a->mime_type);
730         rb=find_codec_rank(b->mime_type);
731         if (ra>rb) return 1;
732         if (ra<rb) return -1;
733         return 0;
734 }
735
736 static MSList *add_missing_codecs(SalStreamType mtype, MSList *l){
737         int i;
738         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
739                 PayloadType *pt=rtp_profile_get_payload(&av_profile,i);
740                 if (pt){
741                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
742                                 pt=NULL;
743                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
744                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
745                                 pt=NULL;
746                         }
747                         if (pt && ms_filter_codec_supported(pt->mime_type)){
748                                 if (ms_list_find(l,pt)==NULL){
749                                         /*unranked codecs are disabled by default*/
750                                         if (find_codec_rank(pt->mime_type)!=RANK_END){
751                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
752                                         }
753                                         ms_message("Adding new codec %s/%i with fmtp %s",
754                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
755                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
756                                 }
757                         }
758                 }
759         }
760         return l;
761 }
762
763 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
764         MSList *elem;
765         for (elem=l;elem!=NULL;elem=elem->next){
766                 PayloadType *ept=(PayloadType*)elem->data;
767                 if (pt==ept)
768                         return l;
769         }
770         l=ms_list_append(l,pt);
771         return l;
772 }
773
774 static void codecs_config_read(LinphoneCore *lc)
775 {
776         int i;
777         PayloadType *pt;
778         MSList *audio_codecs=NULL;
779         MSList *video_codecs=NULL;
780         for (i=0;get_codec(lc->config,"audio_codec",i,&pt);i++){
781                 if (pt){
782                         if (!ms_filter_codec_supported(pt->mime_type)){
783                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
784                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
785                 }
786         }
787         audio_codecs=add_missing_codecs(SalAudio,audio_codecs);
788         for (i=0;get_codec(lc->config,"video_codec",i,&pt);i++){
789                 if (pt){
790                         if (!ms_filter_codec_supported(pt->mime_type)){
791                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
792                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
793                 }
794         }
795         video_codecs=add_missing_codecs(SalVideo,video_codecs);
796         linphone_core_set_audio_codecs(lc,audio_codecs);
797         linphone_core_set_video_codecs(lc,video_codecs);
798         linphone_core_update_allocated_audio_bandwidth(lc);
799 }
800
801 static void build_video_devices_table(LinphoneCore *lc){
802         const MSList *elem;
803         int i;
804         int ndev;
805         const char **devices;
806         if (lc->video_conf.cams)
807                 ms_free(lc->video_conf.cams);
808         /* retrieve all video devices */
809         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
810         ndev=ms_list_size(elem);
811         devices=ms_malloc((ndev+1)*sizeof(const char *));
812         for (i=0;elem!=NULL;elem=elem->next,i++){
813                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
814         }
815         devices[ndev]=NULL;
816         lc->video_conf.cams=devices;
817 }
818
819 static void video_config_read(LinphoneCore *lc){
820 #ifdef VIDEO_ENABLED
821         int capture, display, self_view;
822 #endif
823         const char *str;        
824 #ifdef VIDEO_ENABLED    
825         LinphoneVideoPolicy vpol;
826 #endif
827         build_video_devices_table(lc);
828
829         str=lp_config_get_string(lc->config,"video","device",NULL);
830         if (str && str[0]==0) str=NULL;
831         linphone_core_set_video_device(lc,str);
832
833         linphone_core_set_preferred_video_size_by_name(lc,
834                 lp_config_get_string(lc->config,"video","size","cif"));
835
836 #ifdef VIDEO_ENABLED
837         capture=lp_config_get_int(lc->config,"video","capture",1);
838         display=lp_config_get_int(lc->config,"video","display",1);
839         self_view=lp_config_get_int(lc->config,"video","self_view",1);
840         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
841         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
842         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
843         if(lc->video_conf.displaytype)
844                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
845
846         linphone_core_enable_video(lc,capture,display);
847         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
848         linphone_core_enable_self_view(lc,self_view);
849         linphone_core_set_video_policy(lc,&vpol);
850 #endif
851 }
852
853 static void ui_config_read(LinphoneCore *lc)
854 {
855         LinphoneFriend *lf;
856         int i;
857         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
858                 linphone_core_add_friend(lc,lf);
859         }
860         call_logs_read_from_config_file(lc);
861 }
862
863 /*
864 static void autoreplier_config_init(LinphoneCore *lc)
865 {
866         autoreplier_config_t *config=&lc->autoreplier_conf;
867         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
868         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
869         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
870         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
871         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
872         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
873 }
874 */
875
876 bool_t linphone_core_tunnel_available(void){
877 #ifdef TUNNEL_ENABLED
878         return TRUE;
879 #else
880         return FALSE;
881 #endif
882 }
883
884 /**
885  * Enable adaptive rate control (experimental feature, audio-only).
886  *
887  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
888  * control the output bitrate of the encoders, so that we can adapt to the network conditions and
889  * available bandwidth.
890 **/
891 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
892         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
893 }
894
895 /**
896  * Returns whether adaptive rate control is enabled.
897  *
898  * See linphone_core_enable_adaptive_rate_control().
899 **/
900 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
901         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
902 }
903
904 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
905         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
906 }
907
908 /**
909  * Sets maximum available download bandwidth
910  *
911  * @ingroup media_parameters
912  *
913  * This is IP bandwidth, in kbit/s.
914  * This information is used signaled to other parties during
915  * calls (within SDP messages) so that the remote end can have
916  * sufficient knowledge to properly configure its audio & video
917  * codec output bitrate to not overflow available bandwidth.
918  *
919  * @param lc the LinphoneCore object
920  * @param bw the bandwidth in kbits/s, 0 for infinite
921  */
922 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
923         lc->net_conf.download_bw=bw;
924         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
925 }
926
927 /**
928  * Sets maximum available upload bandwidth
929  *
930  * @ingroup media_parameters
931  *
932  * This is IP bandwidth, in kbit/s.
933  * This information is used by liblinphone together with remote
934  * side available bandwidth signaled in SDP messages to properly
935  * configure audio & video codec's output bitrate.
936  *
937  * @param lc the LinphoneCore object
938  * @param bw the bandwidth in kbits/s, 0 for infinite
939  */
940 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
941         lc->net_conf.upload_bw=bw;
942         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
943 }
944
945 /**
946  * Retrieve the maximum available download bandwidth.
947  *
948  * @ingroup media_parameters
949  *
950  * This value was set by linphone_core_set_download_bandwidth().
951  *
952 **/
953 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
954         return lc->net_conf.download_bw;
955 }
956
957 /**
958  * Retrieve the maximum available upload bandwidth.
959  *
960  * @ingroup media_parameters
961  *
962  * This value was set by linphone_core_set_upload_bandwidth().
963  *
964 **/
965 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
966         return lc->net_conf.upload_bw;
967 }
968 /**
969  * Set audio packetization time linphone expects to receive from peer
970  */
971 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
972         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
973 }
974
975 /**
976  * Get audio packetization time linphone expects to receive from peer
977  */
978 int linphone_core_get_download_ptime(LinphoneCore *lc) {
979         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
980 }
981
982 /**
983  * Set audio packetization time linphone will send (in absence of requirement from peer)
984  * A value of 0 stands for the current codec default packetization time.
985  *
986 **/
987 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
988         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
989 }
990
991 /**
992  * Set audio packetization time linphone will send (in absence of requirement from peer)
993  * A value of 0 stands for the current codec default packetization time.
994  *
995 **/
996 int linphone_core_get_upload_ptime(LinphoneCore *lc){
997         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
998 }
999
1000
1001
1002 /**
1003  * Returns liblinphone's version as a string.
1004  *
1005  * @ingroup misc
1006  *
1007 **/
1008 const char * linphone_core_get_version(void){
1009         return liblinphone_version;
1010 }
1011
1012 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1013         PayloadType *pt;
1014         pt=payload_type_clone(const_pt);
1015         if (number==-1){
1016                 /*look for a free number */
1017                 MSList *elem;
1018                 int i;
1019                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1020                         bool_t already_assigned=FALSE;
1021                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1022                                 PayloadType *it=(PayloadType*)elem->data;
1023                                 if (payload_type_get_number(it)==i){
1024                                         already_assigned=TRUE;
1025                                         break;
1026                                 }
1027                         }
1028                         if (!already_assigned){
1029                                 number=i;
1030                                 lc->dyn_pt=i+1;
1031                                 break;
1032                         }
1033                 }
1034                 if (number==-1){
1035                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1036                 }
1037         }
1038         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1039         payload_type_set_number(pt,number);
1040         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1041         rtp_profile_set_payload(&av_profile,number,pt);
1042         lc->payload_types=ms_list_append(lc->payload_types,pt);
1043 }
1044
1045 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1046         RtpProfile *prof=&av_profile;
1047         int i;
1048         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1049                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1050                 if (pt){
1051                         if (payload_type_get_number(pt)!=i){
1052                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1053                         }
1054                 }
1055         }
1056 }
1057
1058 static void linphone_core_free_payload_types(LinphoneCore *lc){
1059         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1060         ms_list_free(lc->payload_types);
1061         lc->payload_types=NULL;
1062 }
1063
1064 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1065         lc->state=gstate;
1066         if (lc->vtable.global_state_changed){
1067                 lc->vtable.global_state_changed(lc,gstate,message);
1068         }
1069 }
1070 static void misc_config_read (LinphoneCore *lc) {
1071         LpConfig *config=lc->config;
1072     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1073     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1074 }
1075
1076
1077
1078
1079 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1080     const char *factory_config_path, void * userdata)
1081 {
1082         memset (lc, 0, sizeof (LinphoneCore));
1083         lc->data=userdata;
1084         lc->ringstream_autorelease=TRUE;
1085
1086         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1087
1088         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1089         ortp_init();
1090         lc->dyn_pt=96;
1091         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1092         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1093         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1094         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1095         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1096         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1097         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1098         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1099
1100 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1101         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1102          - to workaround potential packet losses
1103          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1104          */
1105         _linphone_core_configure_resolver();
1106 #endif
1107
1108 #ifdef ENABLE_NONSTANDARD_GSM
1109         {
1110                 PayloadType *pt;
1111                 pt=payload_type_clone(&payload_type_gsm);
1112                 pt->clock_rate=11025;
1113                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1114                 pt->clock_rate=22050;
1115                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1116                 payload_type_destroy(pt);
1117         }
1118 #endif
1119
1120 #ifdef VIDEO_ENABLED
1121         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1122         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1123         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1124         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1125         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1126         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1127         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1128         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1129         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1130 #endif
1131
1132         /*add all payload type for which we don't care about the number */
1133         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1134         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1135         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1136         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1137         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1138         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1139         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1140         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1141         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1142         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1143         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1144         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1145         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1146         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1147         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1148         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1149         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1150         linphone_core_handle_static_payloads(lc);
1151         
1152         ms_init();
1153         /* create a mediastreamer2 event queue and set it as global */
1154         /* This allows to run event's callback in linphone_core_iterate() */
1155         lc->msevq=ms_event_queue_new();
1156         ms_set_global_event_queue(lc->msevq);
1157
1158         lc->config=lp_config_new(config_path);
1159         if (factory_config_path)
1160                 lp_config_read_file(lc->config,factory_config_path);
1161
1162         lc->sal=sal_init();
1163         sal_set_user_pointer(lc->sal,lc);
1164         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1165
1166         sip_setup_register_all();
1167         sound_config_read(lc);
1168         net_config_read(lc);
1169         rtp_config_read(lc);
1170         codecs_config_read(lc);
1171         sip_config_read(lc); /* this will start eXosip*/
1172         video_config_read(lc);
1173         //autoreplier_config_init(&lc->autoreplier_conf);
1174         lc->presence_mode=LinphoneStatusOnline;
1175         misc_config_read(lc);
1176         ui_config_read(lc);
1177 #ifdef TUNNEL_ENABLED
1178         lc->tunnel=linphone_core_tunnel_new(lc);
1179         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1180 #endif
1181         if (lc->vtable.display_status)
1182                 lc->vtable.display_status(lc,_("Ready"));
1183         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1184         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1185 }
1186
1187 /**
1188  * Instanciates a LinphoneCore object.
1189  * @ingroup initializing
1190  *
1191  * The LinphoneCore object is the primary handle for doing all phone actions.
1192  * It should be unique within your application.
1193  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1194  * @param config_path a path to a config file. If it does not exists it will be created.
1195  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1196  *             become persistent over the life of the LinphoneCore object.
1197  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1198  * @param factory_config_path a path to a read-only config file that can be used to
1199  *        to store hard-coded preference such as proxy settings or internal preferences.
1200  *        The settings in this factory file always override the one in the normal config file.
1201  *        It is OPTIONAL, use NULL if unneeded.
1202  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1203  *        callbacks) using linphone_core_get_user_data().
1204  *
1205 **/
1206 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1207                                                 const char *config_path, const char *factory_config_path, void * userdata)
1208 {
1209         LinphoneCore *core=ms_new(LinphoneCore,1);
1210         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1211         return core;
1212 }
1213
1214 /**
1215  * Returns the list of available audio codecs.
1216  *
1217  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1218  * structure holding the codec information.
1219  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1220  * (such as the order of codecs).
1221 **/
1222 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1223 {
1224         return lc->codecs_conf.audio_codecs;
1225 }
1226
1227 /**
1228  * Returns the list of available video codecs.
1229  *
1230  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1231  * structure holding the codec information.
1232  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1233  * (such as the order of codecs).
1234 **/
1235 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1236 {
1237         return lc->codecs_conf.video_codecs;
1238 }
1239
1240 /**
1241  * Sets the local "from" identity.
1242  *
1243  * @ingroup proxies
1244  * This data is used in absence of any proxy configuration or when no
1245  * default proxy configuration is set. See LinphoneProxyConfig
1246 **/
1247 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1248 {
1249         LinphoneAddress *ctt;
1250
1251         if ((ctt=linphone_address_new(contact))==0) {
1252                 ms_error("Bad contact url: %s",contact);
1253                 return -1;
1254         }
1255         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1256         lc->sip_conf.contact=ms_strdup(contact);
1257         if (lc->sip_conf.guessed_contact!=NULL){
1258                 ms_free(lc->sip_conf.guessed_contact);
1259                 lc->sip_conf.guessed_contact=NULL;
1260         }
1261         linphone_address_destroy(ctt);
1262         return 0;
1263 }
1264
1265
1266 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1267 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1268         const char *ip;
1269         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1270             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1271                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1272                 return;
1273         }
1274         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1275                 return;
1276         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1277         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1278 }
1279
1280 static void update_primary_contact(LinphoneCore *lc){
1281         char *guessed=NULL;
1282         char tmp[LINPHONE_IPADDR_SIZE];
1283
1284         LinphoneAddress *url;
1285         if (lc->sip_conf.guessed_contact!=NULL){
1286                 ms_free(lc->sip_conf.guessed_contact);
1287                 lc->sip_conf.guessed_contact=NULL;
1288         }
1289         url=linphone_address_new(lc->sip_conf.contact);
1290         if (!url){
1291                 ms_error("Could not parse identity contact !");
1292                 url=linphone_address_new("sip:unknown@unkwownhost");
1293         }
1294         linphone_core_get_local_ip(lc, NULL, tmp);
1295         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1296                 ms_warning("Local loopback network only !");
1297                 lc->sip_conf.loopback_only=TRUE;
1298         }else lc->sip_conf.loopback_only=FALSE;
1299         linphone_address_set_domain(url,tmp);
1300         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1301         guessed=linphone_address_as_string(url);
1302         lc->sip_conf.guessed_contact=guessed;
1303         linphone_address_destroy(url);
1304 }
1305
1306 /**
1307  * Returns the default identity when no proxy configuration is used.
1308  *
1309  * @ingroup proxies
1310 **/
1311 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1312         char *identity;
1313
1314         if (lc->sip_conf.guess_hostname){
1315                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1316                         update_primary_contact(lc);
1317                 }
1318                 identity=lc->sip_conf.guessed_contact;
1319         }else{
1320                 identity=lc->sip_conf.contact;
1321         }
1322         return identity;
1323 }
1324
1325 /**
1326  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1327  *
1328  * @ingroup proxies
1329 **/
1330 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1331         lc->sip_conf.guess_hostname=val;
1332 }
1333
1334 /**
1335  * Returns TRUE if hostname part of primary contact is guessed automatically.
1336  *
1337  * @ingroup proxies
1338 **/
1339 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1340         return lc->sip_conf.guess_hostname;
1341 }
1342
1343 /**
1344  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1345  * instead of const char*
1346  *
1347  * @ingroup proxies
1348 **/
1349 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1350         return linphone_address_new(linphone_core_get_primary_contact(lc));
1351 }
1352
1353 /**
1354  * Sets the list of audio codecs.
1355  *
1356  * @ingroup media_parameters
1357  * The list is taken by the LinphoneCore thus the application should not free it.
1358  * This list is made of struct PayloadType describing the codec parameters.
1359 **/
1360 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1361 {
1362         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1363         lc->codecs_conf.audio_codecs=codecs;
1364         _linphone_core_codec_config_write(lc);
1365         return 0;
1366 }
1367
1368 /**
1369  * Sets the list of video codecs.
1370  *
1371  * @ingroup media_parameters
1372  * The list is taken by the LinphoneCore thus the application should not free it.
1373  * This list is made of struct PayloadType describing the codec parameters.
1374 **/
1375 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1376 {
1377         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1378         lc->codecs_conf.video_codecs=codecs;
1379         _linphone_core_codec_config_write(lc);
1380         return 0;
1381 }
1382
1383 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1384 {
1385         return lc->friends;
1386 }
1387
1388 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1389 {
1390         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1391 }
1392
1393 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1394 {
1395         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1396 }
1397
1398 /**
1399  * Returns the nominal audio jitter buffer size in milliseconds.
1400  *
1401  * @ingroup media_parameters
1402 **/
1403 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1404 {
1405         return lc->rtp_conf.audio_jitt_comp;
1406 }
1407
1408 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1409 {
1410         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1411 }
1412
1413 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1414 {
1415         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1416 }
1417
1418 /**
1419  * Returns the nominal video jitter buffer size in milliseconds.
1420  *
1421  * @ingroup media_parameters
1422 **/
1423 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1424 {
1425         return lc->rtp_conf.video_jitt_comp;
1426 }
1427
1428 /**
1429  * Returns the UDP port used for audio streaming.
1430  *
1431  * @ingroup network_parameters
1432 **/
1433 int linphone_core_get_audio_port(const LinphoneCore *lc)
1434 {
1435         return lc->rtp_conf.audio_rtp_port;
1436 }
1437
1438 /**
1439  * Returns the UDP port used for video streaming.
1440  *
1441  * @ingroup network_parameters
1442 **/
1443 int linphone_core_get_video_port(const LinphoneCore *lc){
1444         return lc->rtp_conf.video_rtp_port;
1445 }
1446
1447
1448 /**
1449  * Returns the value in seconds of the no-rtp timeout.
1450  *
1451  * @ingroup media_parameters
1452  * When no RTP or RTCP packets have been received for a while
1453  * LinphoneCore will consider the call is broken (remote end crashed or
1454  * disconnected from the network), and thus will terminate the call.
1455  * The no-rtp timeout is the duration above which the call is considered broken.
1456 **/
1457 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1458         return lc->rtp_conf.nortp_timeout;
1459 }
1460
1461 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1462         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1463 }
1464
1465 /**
1466  * Sets the nominal audio jitter buffer size in milliseconds.
1467  *
1468  * @ingroup media_parameters
1469 **/
1470 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1471 {
1472         lc->rtp_conf.audio_jitt_comp=value;
1473 }
1474
1475 /**
1476  * Sets the nominal video jitter buffer size in milliseconds.
1477  *
1478  * @ingroup media_parameters
1479 **/
1480 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1481 {
1482         lc->rtp_conf.video_jitt_comp=value;
1483 }
1484
1485 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1486         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1487 }
1488
1489 /**
1490  * Sets the UDP port used for audio streaming.
1491  *
1492  * @ingroup network_parameters
1493 **/
1494 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1495 {
1496         lc->rtp_conf.audio_rtp_port=port;
1497 }
1498
1499 /**
1500  * Sets the UDP port used for video streaming.
1501  *
1502  * @ingroup network_parameters
1503 **/
1504 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1505         lc->rtp_conf.video_rtp_port=port;
1506 }
1507
1508 /**
1509  * Sets the no-rtp timeout value in seconds.
1510  *
1511  * @ingroup media_parameters
1512  * See linphone_core_get_nortp_timeout() for details.
1513 **/
1514 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1515         lc->rtp_conf.nortp_timeout=nortp_timeout;
1516 }
1517
1518 /**
1519  * Indicates whether SIP INFO is used for sending digits.
1520  *
1521  * @ingroup media_parameters
1522 **/
1523 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1524 {
1525         return lc->sip_conf.use_info;
1526 }
1527
1528 /**
1529  * Sets whether SIP INFO is to be used for sending digits.
1530  *
1531  * @ingroup media_parameters
1532 **/
1533 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1534 {
1535         lc->sip_conf.use_info=use_info;
1536 }
1537
1538 /**
1539  * Indicates whether RFC2833 is used for sending digits.
1540  *
1541  * @ingroup media_parameters
1542 **/
1543 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1544 {
1545         return lc->sip_conf.use_rfc2833;
1546 }
1547
1548 /**
1549  * Sets whether RFC2833 is to be used for sending digits.
1550  *
1551  * @ingroup media_parameters
1552 **/
1553 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1554 {
1555         lc->sip_conf.use_rfc2833=use_rfc2833;
1556 }
1557
1558 /**
1559  * Returns the UDP port used by SIP.
1560  *
1561  * Deprecated: use linphone_core_get_sip_transports() instead.
1562  * @ingroup network_parameters
1563 **/
1564 int linphone_core_get_sip_port(LinphoneCore *lc)
1565 {
1566         LCSipTransports *tr=&lc->sip_conf.transports;
1567         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1568 }
1569
1570 static char _ua_name[64]="Linphone";
1571 static char _ua_version[64]=LINPHONE_VERSION;
1572
1573 #ifdef HAVE_EXOSIP_GET_VERSION
1574 extern const char *eXosip_get_version();
1575 #endif
1576
1577 static void apply_user_agent(LinphoneCore *lc){
1578         char ua_string[256];
1579         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1580 #ifdef HAVE_EXOSIP_GET_VERSION
1581                  eXosip_get_version()
1582 #else
1583                  "unknown"
1584 #endif
1585         );
1586         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1587 }
1588
1589 /**
1590  * Sets the user agent string used in SIP messages.
1591  *
1592  * @ingroup misc
1593 **/
1594 void linphone_core_set_user_agent(const char *name, const char *ver){
1595         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1596         strncpy(_ua_version,ver,sizeof(_ua_version));
1597 }
1598
1599 const char *linphone_core_get_user_agent_name(void){
1600         return _ua_name;
1601 }
1602
1603 const char *linphone_core_get_user_agent_version(void){
1604         return _ua_version;
1605 }
1606
1607 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1608         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1609         ms_warning("%s",msg);
1610         if (lc->vtable.display_warning)
1611                 lc->vtable.display_warning(lc,msg);
1612         ms_free(msg);
1613 }
1614
1615 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1616         return
1617                 tr2->udp_port==tr1->udp_port &&
1618                 tr2->tcp_port==tr1->tcp_port &&
1619                 tr2->dtls_port==tr1->dtls_port &&
1620                 tr2->tls_port==tr1->tls_port;
1621 }
1622
1623 static int apply_transports(LinphoneCore *lc){
1624         Sal *sal=lc->sal;
1625         const char *anyaddr;
1626         LCSipTransports *tr=&lc->sip_conf.transports;
1627
1628         /*first of all invalidate all current registrations so that we can register again with new transports*/
1629         __linphone_core_invalidate_registers(lc);
1630         
1631         if (lc->sip_conf.ipv6_enabled)
1632                 anyaddr="::0";
1633         else
1634                 anyaddr="0.0.0.0";
1635
1636         sal_unlisten_ports(sal);
1637         if (tr->udp_port>0){
1638                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1639                         transport_error(lc,"udp",tr->udp_port);
1640                         return -1;
1641                 }
1642         }
1643         if (tr->tcp_port>0){
1644                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1645                         transport_error(lc,"tcp",tr->tcp_port);
1646                 }
1647         }
1648         if (tr->tls_port>0){
1649                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1650                         transport_error(lc,"tls",tr->tls_port);
1651                 }
1652         }
1653         apply_user_agent(lc);
1654         return 0;
1655 }
1656
1657 /**
1658  * Sets the ports to be used for each of transport (UDP or TCP)
1659  *
1660  * A zero value port for a given transport means the transport
1661  * is not used.
1662  *
1663  * @ingroup network_parameters
1664 **/
1665 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1666
1667         if (transports_unchanged(tr,&lc->sip_conf.transports))
1668                 return 0;
1669         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1670
1671         if (linphone_core_ready(lc)){
1672                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1673                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1674                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1675         }
1676
1677         if (lc->sal==NULL) return 0;
1678         return apply_transports(lc);
1679 }
1680
1681 /**
1682  * Retrieves the ports used for each transport (udp, tcp).
1683  * A zero value port for a given transport means the transport
1684  * is not used.
1685  * @ingroup network_parameters
1686 **/
1687 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1688         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1689         return 0;
1690 }
1691
1692 /**
1693  * Sets the UDP port to be used by SIP.
1694  *
1695  * Deprecated: use linphone_core_set_sip_transports() instead.
1696  * @ingroup network_parameters
1697 **/
1698 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1699 {
1700         LCSipTransports tr;
1701         memset(&tr,0,sizeof(tr));
1702         tr.udp_port=port;
1703         linphone_core_set_sip_transports (lc,&tr);
1704 }
1705
1706 /**
1707  * Returns TRUE if IPv6 is enabled.
1708  *
1709  * @ingroup network_parameters
1710  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1711 **/
1712 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1713         return lc->sip_conf.ipv6_enabled;
1714 }
1715
1716 /**
1717  * Turns IPv6 support on or off.
1718  *
1719  * @ingroup network_parameters
1720  *
1721  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1722  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1723  * By default IPv6 support is off.
1724 **/
1725 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1726         if (lc->sip_conf.ipv6_enabled!=val){
1727                 lc->sip_conf.ipv6_enabled=val;
1728                 if (lc->sal){
1729                         /* we need to restart eXosip */
1730                         apply_transports(lc);
1731                 }
1732         }
1733 }
1734
1735
1736 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1737         static time_t last_check=0;
1738         static bool_t last_status=FALSE;
1739         char result[LINPHONE_IPADDR_SIZE];
1740         bool_t new_status=last_status;
1741
1742         /* only do the network up checking every five seconds */
1743         if (last_check==0 || (curtime-last_check)>=5){
1744                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1745                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1746                         new_status=TRUE;
1747                 }else new_status=FALSE;
1748                 last_check=curtime;
1749                 if (new_status!=last_status) {
1750                         if (new_status){
1751                                 ms_message("New local ip address is %s",result);
1752                         }
1753                         set_network_reachable(lc,new_status, curtime);
1754                         last_status=new_status;
1755                 }
1756         }
1757 }
1758
1759 static void proxy_update(LinphoneCore *lc){
1760         MSList *elem,*next;
1761         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1762         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1763                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1764                 next=elem->next;
1765                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1766                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1767                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1768                         linphone_proxy_config_destroy(cfg);
1769                 }
1770         }
1771 }
1772
1773 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1774         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1775         if (lf!=NULL){
1776                 lf->info=info;
1777                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1778                 if (lc->vtable.buddy_info_updated)
1779                         lc->vtable.buddy_info_updated(lc,lf);
1780         }else{
1781                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1782         }
1783 }
1784
1785 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1786         MSList *elem;
1787         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1788         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1789                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1790                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1791                         if (req->results!=NULL){
1792                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1793                                 ms_list_free(req->results);
1794                                 req->results=NULL;
1795                                 assign_buddy_info(lc,i);
1796                         }
1797                         sip_setup_context_buddy_lookup_free(ctx,req);
1798                         elem->data=NULL;
1799                 }
1800         }
1801         /*purge completed requests */
1802         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1803                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1804         }
1805 }
1806
1807 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1808         const MSList *elem;
1809         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1810         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1811                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1812                 if (lf->info==NULL){
1813                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1814                                 if (linphone_address_get_username(lf->uri)!=NULL){
1815                                         BuddyLookupRequest *req;
1816                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1817                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1818                                         buddy_lookup_request_set_key(req,tmp);
1819                                         buddy_lookup_request_set_max_results(req,1);
1820                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1821                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1822                                         ms_free(tmp);
1823                                 }
1824                         }
1825                 }
1826         }
1827 }
1828
1829 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1830         LinphoneProxyConfig *cfg=NULL;
1831         linphone_core_get_default_proxy(lc,&cfg);
1832         if (cfg){
1833                 if (lc->bl_refresh){
1834                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1835                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1836                                 linphone_core_grab_buddy_infos(lc,cfg);
1837                                 lc->bl_refresh=FALSE;
1838                         }
1839                 }
1840                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1841         }
1842 }
1843
1844 /**
1845  * Main loop function. It is crucial that your application call it periodically.
1846  *
1847  * @ingroup initializing
1848  * linphone_core_iterate() performs various backgrounds tasks:
1849  * - receiving of SIP messages
1850  * - handles timers and timeout
1851  * - performs registration to proxies
1852  * - authentication retries
1853  * The application MUST call this function periodically, in its main loop.
1854  * Be careful that this function must be called from the same thread as
1855  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
1856  * serialized with a mutex.
1857 **/
1858 void linphone_core_iterate(LinphoneCore *lc){
1859         MSList *calls;
1860         LinphoneCall *call;
1861         time_t curtime=time(NULL);
1862         int elapsed;
1863         bool_t one_second_elapsed=FALSE;
1864
1865         if (curtime-lc->prevtime>=1){
1866                 lc->prevtime=curtime;
1867                 one_second_elapsed=TRUE;
1868         }
1869
1870         if (lc->ecc!=NULL){
1871                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
1872                 if (ecs!=LinphoneEcCalibratorInProgress){
1873                         if (lc->ecc->cb)
1874                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
1875                         if (ecs==LinphoneEcCalibratorDone){
1876                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
1877                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
1878                         }
1879                         ec_calibrator_destroy(lc->ecc);
1880                         lc->ecc=NULL;
1881                 }
1882         }
1883
1884         if (lc->preview_finished){
1885                 lc->preview_finished=0;
1886                 ring_stop(lc->ringstream);
1887                 lc->ringstream=NULL;
1888                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1889         }
1890
1891         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
1892             && (curtime-lc->dmfs_playing_start_time)>5){
1893                 ring_stop(lc->ringstream);
1894                 lc->ringstream=NULL;
1895                 lc->dmfs_playing_start_time=0;
1896         }
1897
1898         sal_iterate(lc->sal);
1899         if (lc->msevq) ms_event_queue_pump(lc->msevq);
1900         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1901
1902         proxy_update(lc);
1903
1904         //we have to iterate for each call
1905         calls= lc->calls;
1906         while(calls!= NULL){
1907                 call = (LinphoneCall *)calls->data;
1908                  /* get immediately a reference to next one in case the one
1909                  we are going to examine is destroy and removed during
1910                  linphone_core_start_invite() */
1911                 calls=calls->next;
1912                 linphone_call_background_tasks(call,one_second_elapsed);
1913                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
1914                         /*start the call even if the OPTIONS reply did not arrive*/
1915                         if (call->ice_session != NULL) {
1916                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
1917                                                 ,linphone_core_get_stun_server(lc));
1918                                 linphone_call_delete_ice_session(call);
1919                                 linphone_call_stop_media_streams(call);
1920                         }
1921                         linphone_core_start_invite(lc,call);
1922                 }
1923                 if (call->state==LinphoneCallIncomingReceived){
1924                         elapsed=curtime-call->start_time;
1925                         ms_message("incoming call ringing for %i seconds",elapsed);
1926                         if (elapsed>lc->sip_conf.inc_timeout){
1927                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
1928                                 call->log->status=LinphoneCallMissed;
1929                                 call->reason=LinphoneReasonNotAnswered;
1930                                 linphone_core_terminate_call(lc,call);
1931                         }
1932                 }
1933         }
1934                 
1935         if (linphone_core_video_preview_enabled(lc)){
1936                 if (lc->previewstream==NULL && lc->calls==NULL)
1937                         toggle_video_preview(lc,TRUE);
1938 #ifdef VIDEO_ENABLED
1939                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
1940 #endif
1941         }else{
1942                 if (lc->previewstream!=NULL)
1943                         toggle_video_preview(lc,FALSE);
1944         }
1945
1946         linphone_core_run_hooks(lc);
1947         linphone_core_do_plugin_tasks(lc);
1948
1949         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
1950             (curtime-lc->netup_time)>3){
1951                 linphone_core_send_initial_subscribes(lc);
1952                 lc->initial_subscribes_sent=TRUE;
1953         }
1954
1955         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
1956                 lp_config_sync(lc->config);
1957         }
1958 }
1959
1960 /**
1961  * Interpret a call destination as supplied by the user, and returns a fully qualified
1962  * LinphoneAddress.
1963  *
1964  * A sip address should look like DisplayName <sip:username@domain:port> .
1965  * Basically this function performs the following tasks
1966  * - if a phone number is entered, prepend country prefix of the default proxy
1967  *   configuration, eventually escape the '+' by 00.
1968  * - if no domain part is supplied, append the domain name of the default proxy
1969  * - if no sip: is present, prepend it
1970  *
1971  * The result is a syntaxically correct SIP address.
1972 **/
1973
1974 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
1975         enum_lookup_res_t *enumres=NULL;
1976         char *enum_domain=NULL;
1977         LinphoneProxyConfig *proxy=lc->default_proxy;;
1978         char *tmpurl;
1979         LinphoneAddress *uri;
1980
1981         if (is_enum(url,&enum_domain)){
1982                 if (lc->vtable.display_status!=NULL)
1983                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
1984                 if (enum_lookup(enum_domain,&enumres)<0){
1985                         if (lc->vtable.display_status!=NULL)
1986                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
1987                         ms_free(enum_domain);
1988                         return NULL;
1989                 }
1990                 ms_free(enum_domain);
1991                 tmpurl=enumres->sip_address[0];
1992                 uri=linphone_address_new(tmpurl);
1993                 enum_lookup_res_free(enumres);
1994                 return uri;
1995         }
1996         /* check if we have a "sip:" */
1997         if (strstr(url,"sip:")==NULL){
1998                 /* this doesn't look like a true sip uri */
1999                 if (strchr(url,'@')!=NULL){
2000                         /* seems like sip: is missing !*/
2001                         tmpurl=ms_strdup_printf("sip:%s",url);
2002                         uri=linphone_address_new(tmpurl);
2003                         ms_free(tmpurl);
2004                         if (uri){
2005                                 return uri;
2006                         }
2007                 }
2008
2009                 if (proxy!=NULL){
2010                         /* append the proxy domain suffix */
2011                         const char *identity=linphone_proxy_config_get_identity(proxy);
2012                         char normalized_username[128];
2013                         uri=linphone_address_new(identity);
2014                         if (uri==NULL){
2015                                 return NULL;
2016                         }
2017                         linphone_address_set_display_name(uri,NULL);
2018                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2019                                                                 sizeof(normalized_username));
2020                         linphone_address_set_username(uri,normalized_username);
2021                         return uri;
2022                 }else return NULL;
2023         }
2024         uri=linphone_address_new(url);
2025         if (uri!=NULL){
2026                 return uri;
2027         }
2028         /* else we could not do anything with url given by user, so display an error */
2029         if (lc->vtable.display_warning!=NULL){
2030                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2031         }
2032         return NULL;
2033 }
2034
2035 /**
2036  * Returns the default identity SIP address.
2037  *
2038  * @ingroup proxies
2039  * This is an helper function:
2040  *
2041  * If no default proxy is set, this will return the primary contact (
2042  * see linphone_core_get_primary_contact() ). If a default proxy is set
2043  * it returns the registered identity on the proxy.
2044 **/
2045 const char * linphone_core_get_identity(LinphoneCore *lc){
2046         LinphoneProxyConfig *proxy=NULL;
2047         const char *from;
2048         linphone_core_get_default_proxy(lc,&proxy);
2049         if (proxy!=NULL) {
2050                 from=linphone_proxy_config_get_identity(proxy);
2051         }else from=linphone_core_get_primary_contact(lc);
2052         return from;
2053 }
2054
2055 const char * linphone_core_get_route(LinphoneCore *lc){
2056         LinphoneProxyConfig *proxy=NULL;
2057         const char *route=NULL;
2058         linphone_core_get_default_proxy(lc,&proxy);
2059         if (proxy!=NULL) {
2060                 route=linphone_proxy_config_get_route(proxy);
2061         }
2062         return route;
2063 }
2064
2065 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2066         if (call->refer_pending){
2067                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2068                 LinphoneCall *newcall;
2069                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2070                 cp->referer=call;
2071                 ms_message("Starting new call to refered address %s",call->refer_to);
2072                 call->refer_pending=FALSE;
2073                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2074                 linphone_call_params_destroy(cp);
2075                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2076         }
2077 }
2078
2079 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2080         if (referer->op!=NULL){
2081                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2082         }
2083 }
2084
2085 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2086         const MSList *elem;
2087         LinphoneProxyConfig *found_cfg=NULL;
2088         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2089
2090         /*always prefer the default proxy if it is matching the destination uri*/
2091         if (default_cfg){
2092                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2093                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2094                         return default_cfg;
2095         }
2096
2097         /*otherwise iterate through the other proxy config and return the first matching*/
2098         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2099                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2100                 const char *domain=linphone_proxy_config_get_domain(cfg);
2101                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2102                         found_cfg=cfg;
2103                         break;
2104                 }
2105         }
2106         return found_cfg;
2107 }
2108
2109 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2110         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2111         if (cfg==NULL)
2112                 linphone_core_get_default_proxy (lc,&cfg);
2113         if (cfg!=NULL){
2114                 if (route) *route=linphone_proxy_config_get_route(cfg);
2115                 return linphone_proxy_config_get_identity (cfg);
2116         }
2117         return linphone_core_get_primary_contact (lc);
2118 }
2119
2120 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2121         LinphoneAddress *ctt;
2122         const char *localip=call->localip;
2123
2124         /* first use user's supplied ip address if asked*/
2125         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2126                 ctt=linphone_core_get_primary_contact_parsed(lc);
2127                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2128                         linphone_core_get_nat_address_resolved(lc));
2129         }
2130
2131         /* if already choosed, don't change it */
2132         if (call->op && sal_op_get_contact(call->op)!=NULL){
2133                 return NULL;
2134         }
2135         /* if the ping OPTIONS request succeeded use the contact guessed from the
2136          received, rport*/
2137         if (call->ping_op){
2138                 const char *guessed=sal_op_get_contact(call->ping_op);
2139                 if (guessed){
2140                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2141                         return ms_strdup(guessed);
2142                 }
2143         }
2144
2145         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2146         if (dest_proxy && dest_proxy->op){
2147                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2148                 if (fixed_contact) {
2149                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2150                         return ms_strdup(fixed_contact);
2151                 }
2152         }
2153
2154         ctt=linphone_core_get_primary_contact_parsed(lc);
2155
2156         if (ctt!=NULL){
2157                 char *ret;
2158                 /*otherwise use supllied localip*/
2159                 linphone_address_set_domain(ctt,localip);
2160                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2161                 ret=linphone_address_as_string_uri_only(ctt);
2162                 linphone_address_destroy(ctt);
2163                 ms_message("Contact has been fixed using local ip to %s",ret);
2164                 return ret;
2165         }
2166         return NULL;
2167 }
2168
2169 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2170         bool_t ice_ready = FALSE;
2171         bool_t ping_ready = FALSE;
2172
2173         if (call->ice_session != NULL) {
2174                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2175         } else {
2176                 ice_ready = TRUE;
2177         }
2178         if (call->ping_op != NULL) {
2179                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2180         } else {
2181                 ping_ready = TRUE;
2182         }
2183
2184         if ((ice_ready == TRUE) && (ping_ready == TRUE)) {
2185                 return linphone_core_start_invite(lc, call);
2186         }
2187         return 0;
2188 }
2189
2190 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2191         int err;
2192         char *contact;
2193         char *real_url,*barmsg;
2194         char *from;
2195         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2196
2197         /*try to be best-effort in giving real local or routable contact address */
2198         contact=get_fixed_contact(lc,call,dest_proxy);
2199         if (contact){
2200                 sal_op_set_contact(call->op, contact);
2201                 ms_free(contact);
2202         }
2203         linphone_core_stop_dtmf_stream(lc);
2204         linphone_call_init_media_streams(call);
2205         if (lc->ringstream==NULL)
2206                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2207         call->localdesc=create_local_media_description(lc,call);
2208         if (!lc->sip_conf.sdp_200_ack){
2209                 call->media_pending=TRUE;
2210                 sal_call_set_local_media_description(call->op,call->localdesc);
2211         }
2212         real_url=linphone_address_as_string(call->log->to);
2213         from=linphone_address_as_string(call->log->from);
2214         err=sal_call(call->op,from,real_url);
2215
2216         if (lc->sip_conf.sdp_200_ack){
2217                 call->media_pending=TRUE;
2218                 sal_call_set_local_media_description(call->op,call->localdesc);
2219         }
2220         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2221         if (lc->vtable.display_status!=NULL)
2222                 lc->vtable.display_status(lc,barmsg);
2223         ms_free(barmsg);
2224
2225         if (err<0){
2226                 if (lc->vtable.display_status!=NULL)
2227                         lc->vtable.display_status(lc,_("Could not call"));
2228                 linphone_call_stop_media_streams(call);
2229                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2230         }else {
2231                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2232         }
2233         ms_free(real_url);
2234         ms_free(from);
2235         return err;
2236 }
2237
2238 /**
2239  * Initiates an outgoing call
2240  *
2241  * @ingroup call_control
2242  * @param lc the LinphoneCore object
2243  * @param url the destination of the call (sip address, or phone number).
2244  *
2245  * The application doesn't own a reference to the returned LinphoneCall object.
2246  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2247  *
2248  * @return a LinphoneCall object or NULL in case of failure
2249 **/
2250 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2251         LinphoneCall *call;
2252         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2253         p->has_video &= !!lc->video_policy.automatically_initiate;
2254         call=linphone_core_invite_with_params(lc,url,p);
2255         linphone_call_params_destroy(p);
2256         return call;
2257 }
2258
2259
2260 /**
2261  * Initiates an outgoing call according to supplied call parameters
2262  *
2263  * @ingroup call_control
2264  * @param lc the LinphoneCore object
2265  * @param url the destination of the call (sip address, or phone number).
2266  * @param p call parameters
2267  *
2268  * The application doesn't own a reference to the returned LinphoneCall object.
2269  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2270  *
2271  * @return a LinphoneCall object or NULL in case of failure
2272 **/
2273 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2274         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2275         if (addr){
2276                 LinphoneCall *call;
2277                 call=linphone_core_invite_address_with_params(lc,addr,p);
2278                 linphone_address_destroy(addr);
2279                 return call;
2280         }
2281         return NULL;
2282 }
2283
2284 /**
2285  * Initiates an outgoing call given a destination LinphoneAddress
2286  *
2287  * @ingroup call_control
2288  * @param lc the LinphoneCore object
2289  * @param addr the destination of the call (sip address).
2290  *
2291  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2292  * created by linphone_core_interpret_url().
2293  * The application doesn't own a reference to the returned LinphoneCall object.
2294  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2295  *
2296  * @return a LinphoneCall object or NULL in case of failure
2297 **/
2298 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2299         LinphoneCall *call;
2300         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2301         p->has_video &= !!lc->video_policy.automatically_initiate;
2302         call=linphone_core_invite_address_with_params (lc,addr,p);
2303         linphone_call_params_destroy(p);
2304         return call;
2305 }
2306
2307
2308 /**
2309  * Initiates an outgoing call given a destination LinphoneAddress
2310  *
2311  * @ingroup call_control
2312  * @param lc the LinphoneCore object
2313  * @param addr the destination of the call (sip address).
2314         @param params call parameters
2315  *
2316  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2317  * created by linphone_core_interpret_url().
2318  * The application doesn't own a reference to the returned LinphoneCall object.
2319  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2320  *
2321  * @return a LinphoneCall object or NULL in case of failure
2322 **/
2323 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2324 {
2325         const char *route=NULL;
2326         const char *from=NULL;
2327         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2328         LinphoneAddress *parsed_url2=NULL;
2329         char *real_url=NULL;
2330         LinphoneCall *call;
2331         bool_t use_ice = FALSE;
2332
2333         linphone_core_preempt_sound_resources(lc);
2334         
2335         if(!linphone_core_can_we_add_call(lc)){
2336                 if (lc->vtable.display_warning)
2337                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2338                 return NULL;
2339         }
2340         linphone_core_get_default_proxy(lc,&proxy);
2341         route=linphone_core_get_route(lc);
2342
2343         real_url=linphone_address_as_string(addr);
2344         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2345
2346         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2347                 ms_message("Overriding default proxy setting for this call:");
2348                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2349         }
2350
2351         if (dest_proxy!=NULL)
2352                 from=linphone_proxy_config_get_identity(dest_proxy);
2353         else if (proxy!=NULL)
2354                 from=linphone_proxy_config_get_identity(proxy);
2355
2356         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2357         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2358
2359         parsed_url2=linphone_address_new(from);
2360
2361         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2362         call->dest_proxy=dest_proxy;
2363         sal_op_set_route(call->op,route);
2364
2365         if(linphone_core_add_call(lc,call)!= 0)
2366         {
2367                 ms_warning("we had a problem in adding the call into the invite ... weird");
2368                 linphone_call_unref(call);
2369                 return NULL;
2370         }
2371         /* this call becomes now the current one*/
2372         lc->current_call=call;
2373         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2374         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2375                 /* Defer the start of the call after the ICE gathering process. */
2376                 linphone_call_init_media_streams(call);
2377                 linphone_call_start_media_streams_for_ice_gathering(call);
2378                 call->start_time=time(NULL);
2379                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2380                         /* Ice candidates gathering failed, proceed with the call anyway. */
2381                         linphone_call_delete_ice_session(call);
2382                         linphone_call_stop_media_streams(call);
2383                 } else {
2384                         use_ice = TRUE;
2385                 }
2386         }
2387
2388         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2389                 /*defer the start of the call after the OPTIONS ping*/
2390                 call->ping_replied=FALSE;
2391                 call->ping_op=sal_op_new(lc->sal);
2392                 sal_ping(call->ping_op,from,real_url);
2393                 sal_op_set_user_pointer(call->ping_op,call);
2394                 call->start_time=time(NULL);
2395         }else{
2396                 if (use_ice==FALSE) linphone_core_start_invite(lc,call);
2397         }
2398
2399         if (real_url!=NULL) ms_free(real_url);
2400         return call;
2401 }
2402
2403 /**
2404  * Performs a simple call transfer to the specified destination.
2405  *
2406  * The remote endpoint is expected to issue a new call to the specified destination.
2407  * The current call remains active and thus can be later paused or terminated.
2408 **/
2409 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2410 {
2411         char *real_url=NULL;
2412         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2413
2414         if (!real_parsed_url){
2415                 /* bad url */
2416                 return -1;
2417         }
2418         if (call==NULL){
2419                 ms_warning("No established call to refer.");
2420                 return -1;
2421         }
2422         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2423         real_url=linphone_address_as_string (real_parsed_url);
2424         sal_call_refer(call->op,real_url);
2425         ms_free(real_url);
2426         linphone_address_destroy(real_parsed_url);
2427         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2428         return 0;
2429 }
2430
2431 /**
2432  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2433  * @param lc linphone core object
2434  * @param call a running call you want to transfer
2435  * @param dest a running call whose remote person will receive the transfer
2436  *
2437  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2438  * The destination call is a call previously established to introduce the transfered person.
2439  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2440  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2441  * close the call with us (the 'dest' call).
2442 **/
2443 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2444         int result = sal_call_refer_with_replaces (call->op,dest->op);
2445         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2446         return result;
2447 }
2448
2449 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2450         LinphoneCall *call = linphone_core_get_current_call(lc);
2451         if(call != NULL)
2452         {
2453                 if(call->dir==LinphoneCallIncoming
2454                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2455                         return TRUE;
2456         }
2457         return FALSE;
2458 }
2459
2460 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2461         char *barmesg;
2462         char *tmp;
2463         LinphoneAddress *from_parsed;
2464         SalMediaDescription *md;
2465         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2466         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2467
2468         call->localdesc=create_local_media_description(lc,call);
2469         sal_call_set_local_media_description(call->op,call->localdesc);
2470         md=sal_call_get_final_media_description(call->op);
2471         if (md && sal_media_description_empty(md)){
2472                 sal_call_decline(call->op,SalReasonMedia,NULL);
2473                 linphone_call_unref(call);
2474                 return;
2475         }
2476
2477         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2478         linphone_address_clean(from_parsed);
2479         tmp=linphone_address_as_string(from_parsed);
2480         linphone_address_destroy(from_parsed);
2481         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2482             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2483         if (lc->vtable.show) lc->vtable.show(lc);
2484         if (lc->vtable.display_status)
2485             lc->vtable.display_status(lc,barmesg);
2486
2487         /* play the ring if this is the only call*/
2488         if (ms_list_size(lc->calls)==1){
2489                 lc->current_call=call;
2490                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2491                         ring_stop(lc->ringstream);
2492                         lc->ringstream=NULL;
2493                         lc->dmfs_playing_start_time=0;
2494                 }
2495                 if (lc->sound_conf.ring_sndcard!=NULL){
2496                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2497                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2498                                 ms_message("Starting local ring...");
2499                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2500                         }
2501                         else
2502                         {
2503                                 ms_message("the local ring is already started");
2504                         }
2505                 }
2506         }else{
2507                 /* else play a tone within the context of the current call */
2508                 call->ringing_beep=TRUE;
2509                 linphone_core_play_tone(lc);
2510         }
2511
2512         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2513
2514         if (call->state==LinphoneCallIncomingReceived){
2515                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2516
2517                 if (propose_early_media || ringback_tone!=NULL){
2518                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2519                         md=sal_call_get_final_media_description(call->op);
2520                         linphone_core_update_streams(lc,call,md);
2521                 }
2522                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2523                         linphone_core_accept_call(lc,call);
2524                 }
2525         }
2526         linphone_call_unref(call);
2527
2528         ms_free(barmesg);
2529         ms_free(tmp);
2530 }
2531
2532 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2533         const char *subject;
2534         call->camera_active=call->params.has_video;
2535         update_local_media_description(lc,call);
2536         if (call->ice_session != NULL)
2537                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2538
2539         if (call->params.in_conference){
2540                 subject="Conference";
2541         }else{
2542                 subject="Media change";
2543         }
2544         if (lc->vtable.display_status)
2545                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2546         sal_call_set_local_media_description (call->op,call->localdesc);
2547         return sal_call_update(call->op,subject);
2548 }
2549
2550 /**
2551  * @ingroup call_control
2552  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2553  *
2554  * In this version this is limited to the following use cases:
2555  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2556  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2557  *
2558  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2559  * @param lc the core
2560  * @param call the call to be updated
2561  * @param params the new call parameters to use. (may be NULL)
2562  * @return 0 if successful, -1 otherwise.
2563 **/
2564 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2565         int err=0;
2566         if (params!=NULL){
2567 #ifdef VIDEO_ENABLED
2568                 bool_t has_video = call->params.has_video;
2569                 if ((call->ice_session != NULL) && (call->videostream != NULL) && !params->has_video) {
2570                         ice_session_remove_check_list(call->ice_session, call->videostream->ice_check_list);
2571                         call->videostream->ice_check_list = NULL;
2572                 }
2573                 call->params = *params;
2574                 if ((call->ice_session != NULL) && (ice_session_state(call->ice_session) != IS_Completed) && !has_video && params->has_video) {
2575                         /* Defer call update until the ICE candidates gathering process has finished. */
2576                         ms_message("Defer call update to gather ICE candidates");
2577                         update_local_media_description(lc, call);
2578                         linphone_call_init_video_stream(call);
2579                         video_stream_prepare_video(call->videostream);
2580                         if (linphone_core_gather_ice_candidates(lc,call)<0) {
2581                                 /* Ice candidates gathering failed, proceed with the call anyway. */
2582                                 linphone_call_delete_ice_session(call);
2583                         } else return err;
2584                 }
2585 #endif
2586                 err = linphone_core_start_update_call(lc, call);
2587         }else{
2588 #ifdef VIDEO_ENABLED
2589                 if (call->videostream!=NULL){
2590                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2591                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2592                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2593                         }else video_stream_update_video_params(call->videostream);
2594                 }
2595 #endif
2596         }
2597
2598         return err;
2599 }
2600
2601 /**
2602  * @ingroup call_control
2603  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2604  * 
2605  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2606  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2607  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2608  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during 
2609  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2610  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2611  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2612  * 
2613  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2614 **/
2615 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2616         if (call->state==LinphoneCallUpdatedByRemote){
2617                 call->defer_update=TRUE;
2618                 return 0;
2619         }
2620         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2621         return -1;
2622 }
2623
2624 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2625         SalMediaDescription *md;
2626         if (call->ice_session != NULL) {
2627                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2628                         /* Defer the sending of the answer until there are no losing pairs left. */
2629                         return 0;
2630                 }
2631                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2632         }
2633         sal_call_set_local_media_description(call->op,call->localdesc);
2634         sal_call_accept(call->op);
2635         md=sal_call_get_final_media_description(call->op);
2636         if (md && !sal_media_description_empty(md))
2637                 linphone_core_update_streams (lc,call,md);
2638         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2639         return 0;
2640 }
2641
2642 /**
2643  * @ingroup call_control
2644  * Accept call modifications initiated by other end.
2645  * 
2646  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2647  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2648  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2649  * requested by the other party, such as whether a video stream is requested.
2650  * 
2651  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2652  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2653  * If params is not NULL, then the update will be accepted according to the parameters passed.
2654  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used 
2655  * (see linphone_call_params_enable_video()).
2656  * @param lc the linphone core object.
2657  * @param call the LinphoneCall object
2658  * @param params a LinphoneCallParams object describing the call parameters to accept.
2659  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2660 **/
2661 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2662         bool_t old_has_video = call->params.has_video;
2663         if (call->state!=LinphoneCallUpdatedByRemote){
2664                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2665                          linphone_call_state_to_string(call->state));
2666                 return -1;
2667         }
2668         if (params==NULL){
2669                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2670         }else
2671                 call->params=*params;
2672
2673         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2674                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2675                 call->params.has_video=FALSE;
2676         }
2677         if (call->current_params.in_conference) {
2678                 ms_warning("Video isn't supported in conference");
2679                 call->params.has_video = FALSE;
2680         }
2681         call->camera_active=call->params.has_video;
2682         update_local_media_description(lc,call);
2683         if (call->ice_session != NULL) {
2684                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2685 #ifdef VIDEO_ENABLED
2686                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2687                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2688                                 linphone_call_init_video_stream(call);
2689                                 video_stream_prepare_video(call->videostream);
2690                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2691                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2692                                         linphone_call_delete_ice_session(call);
2693                                 } else return 0;
2694                         }
2695                 }
2696 #endif
2697         }
2698         linphone_core_start_accept_call_update(lc, call);
2699         return 0;
2700 }
2701
2702 /**
2703  * Accept an incoming call.
2704  *
2705  * @ingroup call_control
2706  * Basically the application is notified of incoming calls within the
2707  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2708  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2709  * The application can later accept the call using this method.
2710  * @param lc the LinphoneCore object
2711  * @param call the LinphoneCall object representing the call to be answered.
2712  *
2713 **/
2714 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
2715         return linphone_core_accept_call_with_params(lc,call,NULL);
2716 }
2717
2718 /**
2719  * Accept an incoming call, with parameters.
2720  *
2721  * @ingroup call_control
2722  * Basically the application is notified of incoming calls within the
2723  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2724  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2725  * The application can later accept the call using
2726  * this method.
2727  * @param lc the LinphoneCore object
2728  * @param call the LinphoneCall object representing the call to be answered.
2729  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
2730  *
2731 **/
2732 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
2733 {
2734         LinphoneProxyConfig *cfg=NULL;
2735         const char *contact=NULL;
2736         SalOp *replaced;
2737         SalMediaDescription *new_md;
2738         bool_t was_ringing=FALSE;
2739
2740         if (call==NULL){
2741                 //if just one call is present answer the only one ...
2742                 if(linphone_core_get_calls_nb (lc) != 1)
2743                         return -1;
2744                 else
2745                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2746         }
2747
2748         if (call->state==LinphoneCallConnected){
2749                 /*call already accepted*/
2750                 return -1;
2751         }
2752
2753         /* check if this call is supposed to replace an already running one*/
2754         replaced=sal_call_get_replaces(call->op);
2755         if (replaced){
2756                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2757                 if (rc){
2758                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2759                                    call,rc);
2760                         linphone_core_terminate_call(lc,rc);
2761                 }
2762         }
2763
2764         if (lc->current_call!=call){
2765                 linphone_core_preempt_sound_resources(lc);
2766         }
2767
2768         /*stop ringing */
2769         if (lc->ringstream!=NULL) {
2770                 ms_message("stop ringing");
2771                 ring_stop(lc->ringstream);
2772                 ms_message("ring stopped");
2773                 lc->ringstream=NULL;
2774                 was_ringing=TRUE;
2775         }
2776         if (call->ringing_beep){
2777                 linphone_core_stop_dtmf(lc);
2778                 call->ringing_beep=FALSE;
2779         }
2780
2781         linphone_core_get_default_proxy(lc,&cfg);
2782         call->dest_proxy=cfg;
2783         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2784
2785         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
2786                 ms_message("Overriding default proxy setting for this call:");
2787                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
2788         }
2789         /*try to be best-effort in giving real local or routable contact address*/
2790         contact=get_fixed_contact(lc,call,call->dest_proxy);
2791         if (contact)
2792                 sal_op_set_contact(call->op,contact);
2793
2794         if (call->audiostream==NULL)
2795                 linphone_call_init_media_streams(call);
2796         if (!was_ringing && call->audiostream->ticker==NULL){
2797                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2798         }
2799
2800         if (params){
2801                 call->params=*params;
2802                 call->camera_active=call->params.has_video;
2803                 update_local_media_description(lc,call);
2804                 sal_call_set_local_media_description(call->op,call->localdesc);
2805         }
2806         
2807         sal_call_accept(call->op);
2808         if (lc->vtable.display_status!=NULL)
2809                 lc->vtable.display_status(lc,_("Connected."));
2810         lc->current_call=call;
2811         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2812         new_md=sal_call_get_final_media_description(call->op);
2813         linphone_core_update_streams(lc, call, new_md);
2814         if (new_md){
2815                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2816         }else call->media_pending=TRUE;
2817
2818         ms_message("call answered.");
2819         return 0;
2820 }
2821
2822 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2823         sal_call_terminate(call->op);
2824
2825         /*stop ringing*/
2826         if (lc->ringstream!=NULL) {
2827                 ring_stop(lc->ringstream);
2828                 lc->ringstream=NULL;
2829         }
2830         linphone_call_stop_media_streams(call);
2831         if (lc->vtable.display_status!=NULL)
2832                 lc->vtable.display_status(lc,_("Call aborted") );
2833         linphone_call_set_state(call,LinphoneCallError,error);
2834         return 0;
2835 }
2836
2837 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
2838         if (call->state==LinphoneCallIncomingReceived){
2839                 if (call->reason!=LinphoneReasonNotAnswered)
2840                         call->reason=LinphoneReasonDeclined;
2841         }
2842         /*stop ringing*/
2843         if (lc->ringstream!=NULL) {
2844                 ring_stop(lc->ringstream);
2845                 lc->ringstream=NULL;
2846         }
2847
2848         linphone_call_stop_media_streams(call);
2849         if (lc->vtable.display_status!=NULL)
2850                 lc->vtable.display_status(lc,_("Call ended") );
2851 }
2852
2853 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
2854         if (call->state==LinphoneCallIncomingReceived){
2855                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
2856                 call->reason=LinphoneReasonDeclined;
2857                 terminate_call(lc,call);
2858                 linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2859         }else{
2860                 ms_error("Bad state for call redirection.");
2861                 return -1;
2862     }
2863         return 0;
2864 }
2865
2866
2867 /**
2868  * Terminates a call.
2869  *
2870  * @ingroup call_control
2871  * @param lc the LinphoneCore
2872  * @param the_call the LinphoneCall object representing the call to be terminated.
2873 **/
2874 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
2875 {
2876         LinphoneCall *call;
2877         if (the_call == NULL){
2878                 call = linphone_core_get_current_call(lc);
2879                 if (ms_list_size(lc->calls)==1){
2880                         call=(LinphoneCall*)lc->calls->data;
2881                 }else{
2882                         ms_warning("No unique call to terminate !");
2883                         return -1;
2884                 }
2885         }
2886         else
2887         {
2888                 call = the_call;
2889         }
2890         sal_call_terminate(call->op);
2891         terminate_call(lc,call);
2892
2893         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2894         return 0;
2895 }
2896
2897 /**
2898  * Terminates all the calls.
2899  *
2900  * @ingroup call_control
2901  * @param lc The LinphoneCore
2902 **/
2903 int linphone_core_terminate_all_calls(LinphoneCore *lc){
2904         MSList *calls=lc->calls;
2905         while(calls) {
2906                 LinphoneCall *c=(LinphoneCall*)calls->data;
2907                 calls=calls->next;
2908                 linphone_core_terminate_call(lc,c);
2909         }
2910         return 0;
2911 }
2912
2913 /**
2914  * Returns the current list of calls.
2915  *
2916  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
2917  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
2918  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
2919  *
2920  * @ingroup call_control
2921 **/
2922 const MSList *linphone_core_get_calls(LinphoneCore *lc)
2923 {
2924         return lc->calls;
2925 }
2926
2927 /**
2928  * Returns TRUE if there is a call running.
2929  *
2930  * @ingroup call_control
2931 **/
2932 bool_t linphone_core_in_call(const LinphoneCore *lc){
2933         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
2934 }
2935
2936 /**
2937  * Returns The _LinphoneCall struct of the current call if one is in call
2938  *
2939  * @ingroup call_control
2940 **/
2941 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
2942 {
2943         return lc->current_call;
2944 }
2945
2946 /**
2947  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
2948  * this file will be played to the remote user.
2949  *
2950  * @ingroup call_control
2951 **/
2952 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
2953 {
2954         const char *subject=NULL;
2955
2956         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
2957                 ms_warning("Cannot pause this call, it is not active.");
2958                 return -1;
2959         }
2960         update_local_media_description(lc,call);
2961         if (call->ice_session != NULL)
2962                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2963         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
2964                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
2965                 subject="Call on hold";
2966         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
2967                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
2968                 subject="Call on hold for me too";
2969         }else{
2970                 ms_error("No reason to pause this call, it is already paused or inactive.");
2971                 return -1;
2972         }
2973         sal_call_set_local_media_description(call->op,call->localdesc);
2974         if (sal_call_update(call->op,subject) != 0){
2975                 if (lc->vtable.display_warning)
2976                         lc->vtable.display_warning(lc,_("Could not pause the call"));
2977         }
2978         lc->current_call=NULL;
2979         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
2980         if (lc->vtable.display_status)
2981                 lc->vtable.display_status(lc,_("Pausing the current call..."));
2982         if (call->audiostream || call->videostream)
2983                 linphone_call_stop_media_streams (call);
2984         return 0;
2985 }
2986
2987 /**
2988  * Pause all currently running calls.
2989 **/
2990 int linphone_core_pause_all_calls(LinphoneCore *lc){
2991         const MSList *elem;
2992         for(elem=lc->calls;elem!=NULL;elem=elem->next){
2993                 LinphoneCall *call=(LinphoneCall *)elem->data;
2994                 LinphoneCallState cs=linphone_call_get_state(call);
2995                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
2996                         linphone_core_pause_call(lc,call);
2997                 }
2998         }
2999         return 0;
3000 }
3001
3002 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3003         LinphoneCall *current_call;
3004         if (linphone_core_is_in_conference(lc)){
3005                 linphone_core_leave_conference(lc);
3006                 return;
3007         }
3008         current_call=linphone_core_get_current_call(lc);
3009         if(current_call != NULL){
3010                 ms_message("Pausing automatically the current call.");
3011                 linphone_core_pause_call(lc,current_call);
3012         }
3013 }
3014
3015 /**
3016  * Resumes the call.
3017  *
3018  * @ingroup call_control
3019 **/
3020 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3021 {
3022         char temp[255]={0};
3023         LinphoneCall *call = the_call;
3024         const char *subject="Call resuming";
3025         
3026         if(call->state!=LinphoneCallPaused ){
3027                 ms_warning("we cannot resume a call that has not been established and paused before");
3028                 return -1;
3029         }
3030         if (call->params.in_conference==FALSE){
3031                 linphone_core_preempt_sound_resources(lc);
3032                 ms_message("Resuming call %p",call);
3033         }
3034
3035         /* Stop playing music immediately. If remote side is a conference it
3036          prevents the participants to hear it while the 200OK comes back.*/
3037         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3038
3039         update_local_media_description(lc,the_call);
3040         if (call->ice_session != NULL)
3041                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3042         sal_call_set_local_media_description(call->op,call->localdesc);
3043         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3044         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3045         if(sal_call_update(call->op,subject) != 0){
3046                 return -1;
3047         }
3048         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3049         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3050         if (lc->vtable.display_status)
3051                 lc->vtable.display_status(lc,temp);
3052         return 0;
3053 }
3054
3055 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3056         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3057         return !linphone_address_weak_equal (addr,raddr);
3058 }
3059
3060 /**
3061  * Get the call with the remote_address specified
3062  * @param lc
3063  * @param remote_address
3064  * @return the LinphoneCall of the call if found
3065  */
3066 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3067         LinphoneAddress *raddr=linphone_address_new(remote_address);
3068         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3069         if (elem) return (LinphoneCall*) elem->data;
3070         return NULL;
3071 }
3072
3073 int linphone_core_send_publish(LinphoneCore *lc,
3074                                LinphoneOnlineStatus presence_mode)
3075 {
3076         const MSList *elem;
3077         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3078                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3079                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3080         }
3081         return 0;
3082 }
3083
3084 /**
3085  * Set the incoming call timeout in seconds.
3086  *
3087  * @ingroup call_control
3088  * If an incoming call isn't answered for this timeout period, it is
3089  * automatically declined.
3090 **/
3091 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3092         lc->sip_conf.inc_timeout=seconds;
3093 }
3094
3095 /**
3096  * Returns the incoming call timeout
3097  *
3098  * @ingroup call_control
3099  * See linphone_core_set_inc_timeout() for details.
3100 **/
3101 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3102         return lc->sip_conf.inc_timeout;
3103 }
3104
3105 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3106                                                                                                         const char *contact,
3107                                                                                                         LinphoneOnlineStatus presence_mode)
3108 {
3109         if (minutes_away>0) lc->minutes_away=minutes_away;
3110
3111         if (lc->alt_contact!=NULL) {
3112                 ms_free(lc->alt_contact);
3113                 lc->alt_contact=NULL;
3114         }
3115         if (contact) lc->alt_contact=ms_strdup(contact);
3116         if (lc->presence_mode!=presence_mode){
3117                 linphone_core_notify_all_friends(lc,presence_mode);
3118                 /*
3119                    Improve the use of all LINPHONE_STATUS available.
3120                    !TODO Do not mix "presence status" with "answer status code"..
3121                    Use correct parameter to follow sip_if_match/sip_etag.
3122                  */
3123                 linphone_core_send_publish(lc,presence_mode);
3124         }
3125         lc->presence_mode=presence_mode;
3126 }
3127
3128 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3129         return lc->presence_mode;
3130 }
3131
3132 /**
3133  * Get playback sound level in 0-100 scale.
3134  *
3135  * @ingroup media_parameters
3136 **/
3137 int linphone_core_get_play_level(LinphoneCore *lc)
3138 {
3139         return lc->sound_conf.play_lev;
3140 }
3141
3142 /**
3143  * Get ring sound level in 0-100 scale
3144  *
3145  * @ingroup media_parameters
3146 **/
3147 int linphone_core_get_ring_level(LinphoneCore *lc)
3148 {
3149         return lc->sound_conf.ring_lev;
3150 }
3151
3152 /**
3153  * Get sound capture level in 0-100 scale
3154  *
3155  * @ingroup media_parameters
3156 **/
3157 int linphone_core_get_rec_level(LinphoneCore *lc){
3158         return lc->sound_conf.rec_lev;
3159 }
3160
3161 /**
3162  * Set sound ring level in 0-100 scale
3163  *
3164  * @ingroup media_parameters
3165 **/
3166 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3167         MSSndCard *sndcard;
3168         lc->sound_conf.ring_lev=level;
3169         sndcard=lc->sound_conf.ring_sndcard;
3170         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3171 }
3172
3173 /**
3174  * Allow to control play level before entering sound card:  gain in db
3175  *
3176  * @ingroup media_parameters
3177 **/
3178 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3179         float gain=gaindb;
3180         LinphoneCall *call=linphone_core_get_current_call (lc);
3181         AudioStream *st;
3182
3183         lc->sound_conf.soft_play_lev=gaindb;
3184
3185         if (call==NULL || (st=call->audiostream)==NULL){
3186                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3187                 return;
3188         }
3189         if (st->volrecv){
3190                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3191         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3192 }
3193
3194 /**
3195  * Get playback gain in db before entering  sound card.
3196  *
3197  * @ingroup media_parameters
3198 **/
3199 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3200         return lc->sound_conf.soft_play_lev;
3201 }
3202
3203 /**
3204  * Set sound playback level in 0-100 scale
3205  *
3206  * @ingroup media_parameters
3207 **/
3208 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3209         MSSndCard *sndcard;
3210         lc->sound_conf.play_lev=level;
3211         sndcard=lc->sound_conf.play_sndcard;
3212         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3213 }
3214
3215 /**
3216  * Set sound capture level in 0-100 scale
3217  *
3218  * @ingroup media_parameters
3219 **/
3220 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3221 {
3222         MSSndCard *sndcard;
3223         lc->sound_conf.rec_lev=level;
3224         sndcard=lc->sound_conf.capt_sndcard;
3225         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3226 }
3227
3228 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3229         MSSndCard *sndcard=NULL;
3230         if (devid!=NULL){
3231                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3232                 if (sndcard!=NULL &&
3233                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3234                         ms_warning("%s card does not have the %s capability, ignoring.",
3235                                 devid,
3236                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3237                         sndcard=NULL;
3238                 }
3239         }
3240         if (sndcard==NULL) {
3241                 /* get a card that has read+write capabilities */
3242                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3243                 /* otherwise refine to the first card having the right capability*/
3244                 if (sndcard==NULL){
3245                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3246                         for(;elem!=NULL;elem=elem->next){
3247                                 sndcard=(MSSndCard*)elem->data;
3248                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3249                         }
3250                 }
3251                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3252                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3253                         if (elem) sndcard=(MSSndCard*)elem->data;
3254         }
3255         }
3256         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3257         return sndcard;
3258 }
3259
3260 /**
3261  * Returns true if the specified sound device can capture sound.
3262  *
3263  * @ingroup media_parameters
3264  * @param lc The LinphoneCore object
3265  * @param devid the device name as returned by linphone_core_get_sound_devices()
3266 **/
3267 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3268         MSSndCard *sndcard;
3269         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3270         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3271         return FALSE;
3272 }
3273
3274 /**
3275  * Returns true if the specified sound device can play sound.
3276  *
3277  * @ingroup media_parameters
3278  * @param lc The LinphoneCore object
3279  * @param devid the device name as returned by linphone_core_get_sound_devices()
3280 **/
3281 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3282         MSSndCard *sndcard;
3283         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3284         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3285         return FALSE;
3286 }
3287
3288 /**
3289  * Sets the sound device used for ringing.
3290  *
3291  * @ingroup media_parameters
3292  * @param lc The LinphoneCore object
3293  * @param devid the device name as returned by linphone_core_get_sound_devices()
3294 **/
3295 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3296         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3297         lc->sound_conf.ring_sndcard=card;
3298         if (card && linphone_core_ready(lc))
3299                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3300         return 0;
3301 }
3302
3303 /**
3304  * Sets the sound device used for playback.
3305  *
3306  * @ingroup media_parameters
3307  * @param lc The LinphoneCore object
3308  * @param devid the device name as returned by linphone_core_get_sound_devices()
3309 **/
3310 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3311         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3312         lc->sound_conf.play_sndcard=card;
3313         if (card &&  linphone_core_ready(lc))
3314                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3315         return 0;
3316 }
3317
3318 /**
3319  * Sets the sound device used for capture.
3320  *
3321  * @ingroup media_parameters
3322  * @param lc The LinphoneCore object
3323  * @param devid the device name as returned by linphone_core_get_sound_devices()
3324 **/
3325 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3326         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3327         lc->sound_conf.capt_sndcard=card;
3328         if (card &&  linphone_core_ready(lc))
3329                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3330         return 0;
3331 }
3332
3333 /**
3334  * Returns the name of the currently assigned sound device for ringing.
3335  *
3336  * @ingroup media_parameters
3337  * @param lc The LinphoneCore object
3338 **/
3339 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3340 {
3341         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3342         return NULL;
3343 }
3344
3345 /**
3346  * Returns the name of the currently assigned sound device for playback.
3347  *
3348  * @ingroup media_parameters
3349  * @param lc The LinphoneCore object
3350 **/
3351 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3352 {
3353         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3354 }
3355
3356 /**
3357  * Returns the name of the currently assigned sound device for capture.
3358  *
3359  * @ingroup media_parameters
3360  * @param lc The LinphoneCore object
3361 **/
3362 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3363 {
3364         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3365 }
3366
3367 /**
3368  * Returns an unmodifiable array of available sound devices.
3369  *
3370  * The array is NULL terminated.
3371  *
3372  * @ingroup media_parameters
3373  * @param lc The LinphoneCore object
3374 **/
3375 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3376         return lc->sound_conf.cards;
3377 }
3378
3379 /**
3380  * Returns an unmodifiable array of available video capture devices.
3381  *
3382  * @ingroup media_parameters
3383  * The array is NULL terminated.
3384 **/
3385 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3386         return lc->video_conf.cams;
3387 }
3388
3389 /**
3390  * Update detection of sound devices.
3391  * 
3392  * Use this function when the application is notified of USB plug events, so that
3393  * list of available hardwares for sound playback and capture is updated.
3394  **/
3395 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3396         const char *ringer,*playback,*capture;
3397         ringer=linphone_core_get_ringer_device(lc);
3398         playback=linphone_core_get_playback_device(lc);
3399         capture=linphone_core_get_capture_device(lc);
3400         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3401         build_sound_devices_table(lc);
3402         linphone_core_set_ringer_device(lc,ringer);
3403         linphone_core_set_playback_device(lc,playback);
3404         linphone_core_set_capture_device(lc,capture);
3405 }
3406
3407 /**
3408  * Update detection of camera devices.
3409  * 
3410  * Use this function when the application is notified of USB plug events, so that
3411  * list of available hardwares for video capture is updated.
3412  **/
3413 void linphone_core_reload_video_devices(LinphoneCore *lc){
3414         const char *devid;
3415         devid=linphone_core_get_video_device(lc);
3416         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3417         build_video_devices_table(lc);
3418         linphone_core_set_video_device(lc,devid);
3419 }
3420
3421 char linphone_core_get_sound_source(LinphoneCore *lc)
3422 {
3423         return lc->sound_conf.source;
3424 }
3425
3426 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3427 {
3428         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3429         lc->sound_conf.source=source;
3430         if (!sndcard) return;
3431         switch(source){
3432                 case 'm':
3433                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3434                         break;
3435                 case 'l':
3436                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3437                         break;
3438         }
3439
3440 }
3441
3442
3443 /**
3444  * Sets the path to a wav file used for ringing.
3445  *
3446  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3447  * @param lc The LinphoneCore object
3448  *
3449  * @ingroup media_parameters
3450 **/
3451 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3452         if (lc->sound_conf.local_ring!=0){
3453                 ms_free(lc->sound_conf.local_ring);
3454                 lc->sound_conf.local_ring=NULL;
3455         }
3456         if (path)
3457                 lc->sound_conf.local_ring=ms_strdup(path);
3458         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3459                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3460 }
3461
3462 /**
3463  * Returns the path to the wav file used for ringing.
3464  *
3465  * @param lc The LinphoneCore object
3466  * @ingroup media_parameters
3467 **/
3468 const char *linphone_core_get_ring(const LinphoneCore *lc){
3469         return lc->sound_conf.local_ring;
3470 }
3471
3472 /**
3473  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3474  *
3475  * @param path
3476  * @param lc The LinphoneCore object
3477  *
3478  * @ingroup media_parameters
3479 **/
3480 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3481         sal_set_root_ca(lc->sal, path);
3482 }
3483
3484 /**
3485  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3486 **/
3487 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3488         sal_verify_server_certificates(lc->sal,yesno);
3489 }
3490
3491 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3492         LinphoneCore *lc=(LinphoneCore*)ud;
3493         lc->preview_finished=1;
3494 }
3495
3496 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3497 {
3498         if (lc->ringstream!=0){
3499                 ms_warning("Cannot start ring now,there's already a ring being played");
3500                 return -1;
3501         }
3502         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3503         lc->preview_finished=0;
3504         if (lc->sound_conf.ring_sndcard!=NULL){
3505                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3506                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3507         }
3508         return 0;
3509 }
3510
3511 /**
3512  * Sets the path to a wav file used for ringing back.
3513  *
3514  * Ringback means the ring that is heard when it's ringing at the remote party.
3515  * The file must be a wav 16bit linear.
3516  *
3517  * @ingroup media_parameters
3518 **/
3519 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3520         if (lc->sound_conf.remote_ring!=0){
3521                 ms_free(lc->sound_conf.remote_ring);
3522         }
3523         lc->sound_conf.remote_ring=ms_strdup(path);
3524 }
3525
3526 /**
3527  * Returns the path to the wav file used for ringing back.
3528  *
3529  * @ingroup media_parameters
3530 **/
3531 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3532         return lc->sound_conf.remote_ring;
3533 }
3534
3535 /**
3536  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3537  *
3538  * @ingroup media_parameters
3539 **/
3540 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3541         lc->sound_conf.ec=val;
3542         if ( linphone_core_ready(lc))
3543                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3544 }
3545
3546
3547 /**
3548  * Returns TRUE if echo cancellation is enabled.
3549  *
3550  * @ingroup media_parameters
3551 **/
3552 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
3553         return lc->sound_conf.ec;
3554 }
3555
3556 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
3557         lc->sound_conf.ea=val;
3558 }
3559
3560 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
3561         return lc->sound_conf.ea;
3562 }
3563
3564 /**
3565  * Mutes or unmutes the local microphone.
3566  *
3567  * @ingroup media_parameters
3568 **/
3569 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
3570         LinphoneCall *call=linphone_core_get_current_call(lc);
3571         AudioStream *st=NULL;
3572         if (linphone_core_is_in_conference(lc)){
3573                 lc->conf_ctx.local_muted=val;
3574                 st=lc->conf_ctx.local_participant;
3575         }else if (call==NULL){
3576                 ms_warning("linphone_core_mute_mic(): No current call !");
3577                 return;
3578         }else{
3579                 st=call->audiostream;
3580                 call->audio_muted=val;
3581         }
3582         if (st!=NULL){
3583                 audio_stream_set_mic_gain(st,
3584                         (val==TRUE) ? 0 : lp_config_get_float(lc->config,"sound","mic_gain",1));
3585                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
3586                         audio_stream_mute_rtp(st,val);
3587                 }
3588                 
3589         }
3590 }
3591 /**
3592  * Returns whether microphone is muted.
3593 **/
3594 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
3595         LinphoneCall *call=linphone_core_get_current_call(lc);
3596         if (linphone_core_is_in_conference(lc)){
3597                 return lc->conf_ctx.local_muted;
3598         }else if (call==NULL){
3599                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3600                 return FALSE;
3601         }
3602         return call->audio_muted;
3603 }
3604
3605 // returns rtp transmission status for an active stream
3606 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
3607 // was set on then rtp transmission is also muted
3608 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
3609         LinphoneCall *call=linphone_core_get_current_call(lc);
3610         if (call==NULL){
3611                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3612                 return FALSE;
3613         }
3614         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
3615                 return call->audio_muted;
3616         }
3617         return FALSE;
3618 }
3619
3620 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
3621         lc->sound_conf.agc=val;
3622 }
3623
3624 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
3625         return lc->sound_conf.agc;
3626 }
3627
3628 /**
3629  * Send the specified dtmf.
3630  *
3631  * @ingroup media_parameters
3632  * This function only works during calls. The dtmf is automatically played to the user.
3633  * @param lc The LinphoneCore object
3634  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
3635  *
3636 **/
3637 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
3638 {
3639         LinphoneCall *call=linphone_core_get_current_call(lc);
3640         if (call==NULL){
3641                 ms_warning("linphone_core_send_dtmf(): no active call");
3642                 return;
3643         }
3644         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
3645         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
3646         {
3647                 /* In Band DTMF */
3648                 if (call->audiostream!=NULL){
3649                         audio_stream_send_dtmf(call->audiostream,dtmf);
3650                 }
3651                 else
3652                 {
3653                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3654                 }
3655         }
3656         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3657                 /* Out of Band DTMF (use INFO method) */
3658                 sal_call_send_dtmf(call->op,dtmf);
3659         }
3660 }
3661
3662 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3663         if (lc->net_conf.stun_server!=NULL)
3664                 ms_free(lc->net_conf.stun_server);
3665         if (server)
3666                 lc->net_conf.stun_server=ms_strdup(server);
3667         else lc->net_conf.stun_server=NULL;
3668         if (linphone_core_ready(lc))
3669                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
3670 }
3671
3672 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3673         return lc->net_conf.stun_server;
3674 }
3675
3676 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3677         return lc->net_conf.relay;
3678 }
3679
3680 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3681         if (lc->net_conf.relay!=NULL){
3682                 ms_free(lc->net_conf.relay);
3683                 lc->net_conf.relay=NULL;
3684         }
3685         if (addr){
3686                 lc->net_conf.relay=ms_strdup(addr);
3687         }
3688         return 0;
3689 }
3690
3691 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3692 {
3693         if (lc->net_conf.nat_address!=NULL){
3694                 ms_free(lc->net_conf.nat_address);
3695         }
3696         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3697         else lc->net_conf.nat_address=NULL;
3698         if (lc->sip_conf.contact) update_primary_contact(lc);
3699 }
3700
3701 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
3702         return lc->net_conf.nat_address;
3703 }
3704
3705 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
3706 {
3707         struct sockaddr_storage ss;
3708         socklen_t ss_len;
3709         int error;
3710         char ipstring [INET6_ADDRSTRLEN];
3711
3712         if (lc->net_conf.nat_address==NULL) return NULL;
3713         
3714         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
3715                 return lc->net_conf.nat_address;
3716         }
3717
3718         error = getnameinfo((struct sockaddr *)&ss, ss_len,
3719                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
3720         if (error) {
3721                 return lc->net_conf.nat_address;
3722         }
3723
3724         if (lc->net_conf.nat_address_ip!=NULL){
3725                 ms_free(lc->net_conf.nat_address_ip);
3726         }
3727         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
3728         return lc->net_conf.nat_address_ip;
3729 }
3730
3731 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
3732         lc->net_conf.firewall_policy=pol;
3733         if (lc->sip_conf.contact) update_primary_contact(lc);
3734         if (linphone_core_ready(lc))
3735                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
3736 }
3737
3738 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
3739         return lc->net_conf.firewall_policy;
3740 }
3741
3742 /**
3743  * Get the list of call logs (past calls).
3744  *
3745  * @ingroup call_logs
3746 **/
3747 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
3748         return lc->call_logs;
3749 }
3750
3751 /**
3752  * Erase the call log.
3753  *
3754  * @ingroup call_logs
3755 **/
3756 void linphone_core_clear_call_logs(LinphoneCore *lc){
3757         lc->missed_calls=0;
3758         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
3759         lc->call_logs=ms_list_free(lc->call_logs);
3760         call_logs_write_to_config_file(lc);
3761 }
3762
3763 /**
3764  * Returns number of missed calls.
3765  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
3766 **/
3767 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
3768         return lc->missed_calls;
3769 }
3770
3771 /**
3772  * Resets the counter of missed calls.
3773 **/
3774 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
3775         lc->missed_calls=0;
3776 }
3777
3778 /**
3779  * Remove a specific call log from call history list.
3780  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
3781  * @param lc the linphone core object
3782  * @param a LinphoneCallLog object.
3783 **/
3784 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
3785         lc->call_logs = ms_list_remove(lc->call_logs, cl);
3786         call_logs_write_to_config_file(lc);
3787         linphone_call_log_destroy(cl);
3788 }
3789
3790 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
3791 #ifdef VIDEO_ENABLED
3792         if (val){
3793                 if (lc->previewstream==NULL){
3794                         lc->previewstream=video_preview_new();
3795                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
3796                         if (lc->video_conf.displaytype)
3797                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
3798                         if (lc->preview_window_id!=0)
3799                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
3800                         video_preview_start(lc->previewstream,lc->video_conf.device);
3801                 }
3802         }else{
3803                 if (lc->previewstream!=NULL){
3804                         video_preview_stop(lc->previewstream);
3805                         lc->previewstream=NULL;
3806                 }
3807         }
3808 #endif
3809 }
3810
3811 /**
3812  * Enables video globally.
3813  *
3814  * @ingroup media_parameters
3815  * This function does not have any effect during calls. It just indicates LinphoneCore to
3816  * initiate future calls with video or not. The two boolean parameters indicate in which
3817  * direction video is enabled. Setting both to false disables video entirely.
3818  *
3819  * @param lc The LinphoneCore object
3820  * @param vcap_enabled indicates whether video capture is enabled
3821  * @param display_enabled indicates whether video display should be shown
3822  *
3823 **/
3824 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
3825 #ifndef VIDEO_ENABLED
3826         if (vcap_enabled || display_enabled)
3827                 ms_warning("This version of linphone was built without video support.");
3828 #endif
3829         lc->video_conf.capture=vcap_enabled;
3830         lc->video_conf.display=display_enabled;
3831
3832         /* need to re-apply network bandwidth settings*/
3833         linphone_core_set_download_bandwidth(lc,
3834                 linphone_core_get_download_bandwidth(lc));
3835         linphone_core_set_upload_bandwidth(lc,
3836                 linphone_core_get_upload_bandwidth(lc));
3837 }
3838
3839 bool_t linphone_core_video_supported(LinphoneCore *lc){
3840 #ifdef VIDEO_ENABLED
3841         return TRUE;
3842 #else
3843         return FALSE;
3844 #endif
3845 }
3846
3847 /**
3848  * Returns TRUE if video is enabled, FALSE otherwise.
3849  * @ingroup media_parameters
3850 **/
3851 bool_t linphone_core_video_enabled(LinphoneCore *lc){
3852         return (lc->video_conf.display || lc->video_conf.capture);
3853 }
3854
3855 /**
3856  * Sets the default policy for video.
3857  * This policy defines whether:
3858  * - video shall be initiated by default for outgoing calls
3859  * - video shall be accepter by default for incoming calls
3860  * @ingroup media_parameters
3861 **/
3862 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
3863         lc->video_policy=*policy;
3864         if (linphone_core_ready(lc)){
3865                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
3866                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
3867         }
3868 }
3869
3870 /**
3871  * Get the default policy for video.
3872  * See linphone_core_set_video_policy() for more details.
3873  * @ingroup media_parameters
3874 **/
3875 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
3876         return &lc->video_policy;
3877 }
3878
3879 /**
3880  * Controls video preview enablement.
3881  *
3882  * @ingroup media_parameters
3883  * Video preview refers to the action of displaying the local webcam image
3884  * to the user while not in call.
3885 **/
3886 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
3887         lc->video_conf.show_local=val;
3888         if (linphone_core_ready(lc))
3889                 lp_config_set_int(lc->config,"video","show_local",val);
3890 }
3891
3892 /**
3893  * Returns TRUE if video previewing is enabled.
3894  * @ingroup media_parameters
3895 **/
3896 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
3897         return lc->video_conf.show_local;
3898 }
3899
3900 /**
3901  * Enables or disable self view during calls.
3902  *
3903  * @ingroup media_parameters
3904  * Self-view refers to having local webcam image inserted in corner
3905  * of the video window during calls.
3906  * This function works at any time, including during calls.
3907 **/
3908 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
3909 #ifdef VIDEO_ENABLED
3910         LinphoneCall *call=linphone_core_get_current_call (lc);
3911         lc->video_conf.selfview=val;
3912         if (call && call->videostream){
3913                 video_stream_enable_self_view(call->videostream,val);
3914         }
3915         if (linphone_core_ready(lc)){
3916                 lp_config_set_int(lc->config,"video","self_view",val);
3917         }
3918 #endif
3919 }
3920
3921 /**
3922  * Returns TRUE if self-view is enabled, FALSE otherwise.
3923  *
3924  * @ingroup media_parameters
3925  *
3926  * Refer to linphone_core_enable_self_view() for details.
3927 **/
3928 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
3929         return lc->video_conf.selfview;
3930 }
3931
3932 /**
3933  * Sets the active video device.
3934  *
3935  * @ingroup media_parameters
3936  * @param lc The LinphoneCore object
3937  * @param id the name of the video device as returned by linphone_core_get_video_devices()
3938 **/
3939 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
3940         MSWebCam *olddev=lc->video_conf.device;
3941         const char *vd;
3942         if (id!=NULL){
3943                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
3944                 if (lc->video_conf.device==NULL){
3945                         ms_warning("Could not found video device %s",id);
3946                 }
3947         }
3948         if (lc->video_conf.device==NULL)
3949                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
3950         if (olddev!=NULL && olddev!=lc->video_conf.device){
3951                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
3952         }
3953         if ( linphone_core_ready(lc) && lc->video_conf.device){
3954                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
3955                 if (vd && strstr(vd,"Static picture")!=NULL){
3956                         vd=NULL;
3957                 }
3958                 lp_config_set_string(lc->config,"video","device",vd);
3959         }
3960         return 0;
3961 }
3962
3963 /**
3964  * Returns the name of the currently active video device.
3965  *
3966  * @param lc The LinphoneCore object
3967  * @ingroup media_parameters
3968 **/
3969 const char *linphone_core_get_video_device(const LinphoneCore *lc){
3970         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
3971         return NULL;
3972 }
3973
3974 #ifdef VIDEO_ENABLED
3975 static VideoStream * get_active_video_stream(LinphoneCore *lc){
3976         VideoStream *vs = NULL;
3977         LinphoneCall *call=linphone_core_get_current_call (lc);
3978         /* Select the video stream from the call in the first place */
3979         if (call && call->videostream) {
3980                 vs = call->videostream;
3981         }
3982         /* If not in call, select the video stream from the preview */
3983         if (vs == NULL && lc->previewstream) {
3984                 vs = lc->previewstream;
3985         }
3986         return vs;
3987 }
3988 #endif
3989
3990 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
3991 #ifdef VIDEO_ENABLED
3992         VideoStream *vs=get_active_video_stream(lc);
3993         /* If we have a video stream (either preview, either from call), we
3994                  have a source and it is using the static picture filter, then
3995                  force the filter to use that picture. */
3996         if (vs && vs->source) {
3997                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
3998                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
3999                                                                                                                 (void *)path);
4000                 }
4001         }
4002         /* Tell the static image filter to use that image from now on so
4003                  that the image will be used next time it has to be read */
4004         ms_static_image_set_default_image(path);
4005 #else
4006         ms_warning("Video support not compiled.");
4007 #endif
4008         return 0;
4009 }
4010
4011 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4012 #ifdef VIDEO_ENABLED
4013         VideoStream *vs = NULL;
4014
4015         vs=get_active_video_stream(lc);
4016
4017         /* If we have a video stream (either preview, either from call), we
4018                  have a source and it is using the static picture filter, then
4019                  force the filter to use that picture. */
4020         if (vs && vs->source) {
4021                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4022                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4023                 }
4024         }
4025 #else
4026         ms_warning("Video support not compiled.");
4027 #endif
4028         return 0;
4029 }
4030
4031 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4032 #ifdef VIDEO_ENABLED
4033         VideoStream *vs = NULL;
4034         vs=get_active_video_stream(lc);
4035         /* If we have a video stream (either preview, either from call), we
4036                  have a source and it is using the static picture filter, then
4037                  force the filter to use that picture. */
4038         if (vs && vs->source) {
4039                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4040
4041                         float fps;
4042
4043                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4044                         return fps;
4045                 }
4046         }
4047 #else
4048         ms_warning("Video support not compiled.");
4049 #endif
4050         return 0;
4051 }
4052
4053 /**
4054  * Returns the native window handle of the video window, casted as an unsigned long.
4055  *
4056  * @ingroup media_parameters
4057 **/
4058 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4059 #ifdef VIDEO_ENABLED
4060         LinphoneCall *call=linphone_core_get_current_call (lc);
4061         if (call && call->videostream)
4062                 return video_stream_get_native_window_id(call->videostream);
4063         if (lc->previewstream)
4064                 return video_stream_get_native_window_id(lc->previewstream);
4065 #endif
4066         return lc->video_window_id;
4067 }
4068
4069 /**@ingroup media_parameters
4070  * Set the native video window id where the video is to be displayed.
4071  * If not set the core will create its own window.
4072 **/
4073 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4074 #ifdef VIDEO_ENABLED
4075         LinphoneCall *call=linphone_core_get_current_call(lc);
4076         lc->video_window_id=id;
4077         if (call!=NULL && call->videostream){
4078                 video_stream_set_native_window_id(call->videostream,id);
4079         }
4080 #endif
4081 }
4082
4083 /**
4084  * Returns the native window handle of the video preview window, casted as an unsigned long.
4085  *
4086  * @ingroup media_parameters
4087 **/
4088 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4089 #ifdef VIDEO_ENABLED
4090         LinphoneCall *call=linphone_core_get_current_call (lc);
4091         if (call && call->videostream)
4092                 return video_stream_get_native_preview_window_id(call->videostream);
4093         if (lc->previewstream)
4094                 return video_preview_get_native_window_id(lc->previewstream);
4095 #endif
4096         return lc->preview_window_id;
4097 }
4098
4099 /**
4100  * @ingroup media_parameters
4101  * Set the native window id where the preview video (local camera) is to be displayed.
4102  * This has to be used in conjonction with linphone_core_use_preview_window().
4103  * If not set the core will create its own window.
4104 **/
4105 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4106         lc->preview_window_id=id;
4107 #ifdef VIDEO_ENABLED
4108         LinphoneCall *call=linphone_core_get_current_call(lc);
4109         if (call!=NULL && call->videostream){
4110                 video_stream_set_native_preview_window_id(call->videostream,id);
4111         }else if (lc->previewstream){
4112                 video_preview_set_native_window_id(lc->previewstream,id);
4113         }
4114 #endif
4115 }
4116
4117 /**
4118  * Can be used to disable video showing to free XV port
4119 **/
4120 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4121 #ifdef VIDEO_ENABLED
4122         ms_error("linphone_core_show_video %d", show);
4123         LinphoneCall *call=linphone_core_get_current_call(lc);
4124         if (call!=NULL && call->videostream){
4125                 video_stream_show_video(call->videostream,show);
4126         }
4127 #endif
4128 }
4129
4130 /**
4131  * Tells the core to use a separate window for local camera preview video, instead of
4132  * inserting local view within the remote video window.
4133  *
4134 **/
4135 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4136         lc->use_preview_window=yesno;
4137 }
4138 /**
4139  * @ingroup media_parameters
4140  *returns current device orientation
4141  */
4142 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4143         return lc->device_rotation;
4144 }
4145 /**
4146  * @ingroup media_parameters
4147  * Tells the core the device current orientation. This can be used by capture filters
4148  * on mobile devices to select between portrait/landscape mode and to produce properly
4149  * oriented images. The exact meaning of the value in rotation if left to each device
4150  * specific implementations.
4151  *@param lc  object.
4152  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4153  *
4154 **/
4155 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4156 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4157         lc->device_rotation = rotation;
4158 #ifdef VIDEO_ENABLED
4159         LinphoneCall *call=linphone_core_get_current_call(lc);
4160         if (call!=NULL && call->videostream){
4161                 video_stream_set_device_rotation(call->videostream,rotation);
4162         }
4163 #endif
4164 }
4165
4166 static MSVideoSizeDef supported_resolutions[]={
4167 #ifdef ENABLE_HD
4168         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4169         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4170 #endif
4171         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4172         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4173         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4174         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4175         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4176         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4177         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },      
4178         {       {0,0}                   ,       NULL    }
4179 };
4180
4181 /**
4182  * Returns the zero terminated table of supported video resolutions.
4183  *
4184  * @ingroup media_parameters
4185 **/
4186 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4187         return supported_resolutions;
4188 }
4189
4190 static MSVideoSize video_size_get_by_name(const char *name){
4191         MSVideoSizeDef *pdef=supported_resolutions;
4192         MSVideoSize null_vsize={0,0};
4193         for(;pdef->name!=NULL;pdef++){
4194                 if (strcasecmp(name,pdef->name)==0){
4195                         return pdef->vsize;
4196                 }
4197         }
4198         ms_warning("Video resolution %s is not supported in linphone.",name);
4199         return null_vsize;
4200 }
4201
4202 static const char *video_size_get_name(MSVideoSize vsize){
4203         MSVideoSizeDef *pdef=supported_resolutions;
4204         for(;pdef->name!=NULL;pdef++){
4205                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4206                         return pdef->name;
4207                 }
4208         }
4209         return NULL;
4210 }
4211
4212 static bool_t video_size_supported(MSVideoSize vsize){
4213         if (video_size_get_name(vsize)) return TRUE;
4214         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4215         return FALSE;
4216 }
4217
4218 /**
4219  * Sets the preferred video size.
4220  *
4221  * @ingroup media_parameters
4222  * This applies only to the stream that is captured and sent to the remote party,
4223  * since we accept all standard video size on the receive path.
4224 **/
4225 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4226         if (video_size_supported(vsize)){
4227                 MSVideoSize oldvsize=lc->video_conf.vsize;
4228                 lc->video_conf.vsize=vsize;
4229                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4230                         toggle_video_preview(lc,FALSE);
4231                         toggle_video_preview(lc,TRUE);
4232                 }
4233                 if ( linphone_core_ready(lc))
4234                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4235         }
4236 }
4237
4238 /**
4239  * Sets the preferred video size by its name.
4240  *
4241  * @ingroup media_parameters
4242  * This is identical to linphone_core_set_preferred_video_size() except
4243  * that it takes the name of the video resolution as input.
4244  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4245 **/
4246 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4247         MSVideoSize vsize=video_size_get_by_name(name);
4248         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4249         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4250         else linphone_core_set_preferred_video_size(lc,default_vsize);
4251 }
4252
4253 /**
4254  * Returns the current preferred video size for sending.
4255  *
4256  * @ingroup media_parameters
4257 **/
4258 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4259         return lc->video_conf.vsize;
4260 }
4261
4262 /**
4263  * Ask the core to stream audio from and to files, instead of using the soundcard.
4264 **/
4265 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4266         lc->use_files=yesno;
4267 }
4268
4269 /**
4270  * Sets a wav file to be played when putting somebody on hold,
4271  * or when files are used instead of soundcards (see linphone_core_use_files()).
4272  *
4273  * The file must be a 16 bit linear wav file.
4274 **/
4275 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4276         LinphoneCall *call=linphone_core_get_current_call(lc);
4277         if (lc->play_file!=NULL){
4278                 ms_free(lc->play_file);
4279                 lc->play_file=NULL;
4280         }
4281         if (file!=NULL) {
4282                 lc->play_file=ms_strdup(file);
4283                 if (call && call->audiostream && call->audiostream->ticker)
4284                         audio_stream_play(call->audiostream,file);
4285         }
4286 }
4287
4288
4289 /**
4290  * Sets a wav file where incoming stream is to be recorded,
4291  * when files are used instead of soundcards (see linphone_core_use_files()).
4292  *
4293  * The file must be a 16 bit linear wav file.
4294 **/
4295 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4296         LinphoneCall *call=linphone_core_get_current_call(lc);
4297         if (lc->rec_file!=NULL){
4298                 ms_free(lc->rec_file);
4299                 lc->rec_file=NULL;
4300         }
4301         if (file!=NULL) {
4302                 lc->rec_file=ms_strdup(file);
4303                 if (call && call->audiostream)
4304                         audio_stream_record(call->audiostream,file);
4305         }
4306 }
4307
4308
4309 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4310         LinphoneCall *call=linphone_core_get_current_call (lc);
4311         AudioStream *stream=NULL;
4312         if (call){
4313                 stream=call->audiostream;
4314         }else if (linphone_core_is_in_conference(lc)){
4315                 stream=lc->conf_ctx.local_participant;
4316         }
4317         if (stream){
4318                 return stream->dtmfgen;
4319         }
4320         if (lc->ringstream==NULL){
4321                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4322                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4323                 if (ringcard == NULL)
4324                         return NULL;
4325
4326                 lc->ringstream=ring_start(NULL,0,ringcard);
4327                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4328                 lc->dmfs_playing_start_time=time(NULL);
4329         }else{
4330                 if (lc->dmfs_playing_start_time!=0)
4331                         lc->dmfs_playing_start_time=time(NULL);
4332         }
4333         return lc->ringstream->gendtmf;
4334 }
4335
4336 /**
4337  * @ingroup media_parameters
4338  * Plays a dtmf sound to the local user.
4339  * @param lc #LinphoneCore
4340  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4341  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4342 **/
4343 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4344         MSFilter *f=get_dtmf_gen(lc);
4345         if (f==NULL){
4346                 ms_error("No dtmf generator at this time !");
4347                 return;
4348         }
4349
4350         if (duration_ms>0)
4351                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4352         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4353 }
4354
4355 /**
4356  * @ingroup media_parameters
4357  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4358  * @param lc #LinphoneCore
4359 **/
4360 void linphone_core_play_tone(LinphoneCore *lc){
4361         MSFilter *f=get_dtmf_gen(lc);
4362         MSDtmfGenCustomTone def;
4363         if (f==NULL){
4364                 ms_error("No dtmf generator at this time !");
4365                 return;
4366         }
4367         def.duration=300;
4368         def.frequency=500;
4369         def.amplitude=1;
4370         def.interval=2000;
4371         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4372 }
4373
4374 /**
4375  * @ingroup media_parameters
4376  *
4377  * Stops playing a dtmf started by linphone_core_play_dtmf().
4378 **/
4379 void linphone_core_stop_dtmf(LinphoneCore *lc){
4380         MSFilter *f=get_dtmf_gen(lc);
4381         if (f!=NULL)
4382                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4383 }
4384
4385
4386
4387 /**
4388  * Retrieves the user pointer that was given to linphone_core_new()
4389  *
4390  * @ingroup initializing
4391 **/
4392 void *linphone_core_get_user_data(LinphoneCore *lc){
4393         return lc->data;
4394 }
4395
4396 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4397         lc->data=userdata;
4398 }
4399
4400 int linphone_core_get_mtu(const LinphoneCore *lc){
4401         return lc->net_conf.mtu;
4402 }
4403
4404 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4405         lc->net_conf.mtu=mtu;
4406         if (mtu>0){
4407                 if (mtu<500){
4408                         ms_error("MTU too small !");
4409                         mtu=500;
4410                 }
4411                 ms_set_mtu(mtu);
4412                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4413         }else ms_set_mtu(0);//use mediastreamer2 default value
4414 }
4415
4416 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4417         lc->wait_cb=cb;
4418         lc->wait_ctx=user_context;
4419 }
4420
4421 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4422         if (lc->wait_cb){
4423                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4424         }
4425 }
4426
4427 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4428         if (lc->wait_cb){
4429                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4430         }else{
4431 #ifdef WIN32
4432                 Sleep(50000);
4433 #else
4434                 usleep(50000);
4435 #endif
4436         }
4437 }
4438
4439 void linphone_core_stop_waiting(LinphoneCore *lc){
4440         if (lc->wait_cb){
4441                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4442         }
4443 }
4444
4445 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4446         lc->rtptf=factories;
4447 }
4448
4449 /**
4450  * Retrieve RTP statistics regarding current call.
4451  * @param local RTP statistics computed locally.
4452  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4453  *
4454  * @note Remote RTP statistics is not implemented yet.
4455  *
4456  * @returns 0 or -1 if no call is running.
4457 **/
4458
4459 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4460         LinphoneCall *call=linphone_core_get_current_call (lc);
4461         if (call!=NULL){
4462                 if (call->audiostream!=NULL){
4463                         memset(remote,0,sizeof(*remote));
4464                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4465                         return 0;
4466                 }
4467         }
4468         return -1;
4469 }
4470
4471 void net_config_uninit(LinphoneCore *lc)
4472 {
4473         net_config_t *config=&lc->net_conf;
4474
4475         if (config->stun_server!=NULL){
4476                 ms_free(lc->net_conf.stun_server);
4477         }
4478         if (config->nat_address!=NULL){
4479                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4480                 ms_free(lc->net_conf.nat_address);
4481         }
4482         if (lc->net_conf.nat_address_ip !=NULL){
4483                 ms_free(lc->net_conf.nat_address_ip);
4484         }
4485         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4486 }
4487
4488
4489 void sip_config_uninit(LinphoneCore *lc)
4490 {
4491         MSList *elem;
4492         int i;
4493         sip_config_t *config=&lc->sip_conf;
4494         
4495         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4496         lp_config_set_string(lc->config,"sip","contact",config->contact);
4497         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4498         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4499         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4500         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4501         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4502
4503
4504         
4505
4506         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4507                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4508                 linphone_proxy_config_edit(cfg);        /* to unregister */
4509         }
4510
4511         for (i=0;i<20;i++){
4512                 sal_iterate(lc->sal);
4513 #ifndef WIN32
4514                 usleep(100000);
4515 #else
4516                 Sleep(100);
4517 #endif
4518         }
4519
4520         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4521         ms_list_free(config->proxies);
4522         config->proxies=NULL;
4523
4524         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
4525
4526         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
4527         ms_list_free(lc->auth_info);
4528         lc->auth_info=NULL;
4529
4530         sal_uninit(lc->sal);
4531         lc->sal=NULL;
4532
4533         if (lc->sip_conf.guessed_contact)
4534                 ms_free(lc->sip_conf.guessed_contact);
4535         if (config->contact)
4536                 ms_free(config->contact);
4537
4538 }
4539
4540 void rtp_config_uninit(LinphoneCore *lc)
4541 {
4542         rtp_config_t *config=&lc->rtp_conf;
4543         lp_config_set_int(lc->config,"rtp","audio_rtp_port",config->audio_rtp_port);
4544         lp_config_set_int(lc->config,"rtp","video_rtp_port",config->video_rtp_port);
4545         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
4546         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
4547         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
4548         lp_config_set_int(lc->config,"rtp","audio_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
4549         lp_config_set_int(lc->config,"rtp","video_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
4550 }
4551
4552 static void sound_config_uninit(LinphoneCore *lc)
4553 {
4554         sound_config_t *config=&lc->sound_conf;
4555         ms_free(config->cards);
4556
4557         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
4558
4559         if (config->local_ring) ms_free(config->local_ring);
4560         if (config->remote_ring) ms_free(config->remote_ring);
4561         ms_snd_card_manager_destroy();
4562 }
4563
4564 static void video_config_uninit(LinphoneCore *lc)
4565 {
4566         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
4567         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4568         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4569         if (lc->video_conf.cams)
4570                 ms_free(lc->video_conf.cams);
4571 }
4572
4573 void _linphone_core_codec_config_write(LinphoneCore *lc){
4574         if (linphone_core_ready(lc)){
4575                 PayloadType *pt;
4576                 codecs_config_t *config=&lc->codecs_conf;
4577                 MSList *node;
4578                 char key[50];
4579                 int index;
4580                 index=0;
4581                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
4582                         pt=(PayloadType*)(node->data);
4583                         sprintf(key,"audio_codec_%i",index);
4584                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4585                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4586                         lp_config_set_int(lc->config,key,"channels",pt->channels);
4587                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4588                         index++;
4589                 }
4590                 sprintf(key,"audio_codec_%i",index);
4591                 lp_config_clean_section (lc->config,key);
4592
4593                 index=0;
4594                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
4595                         pt=(PayloadType*)(node->data);
4596                         sprintf(key,"video_codec_%i",index);
4597                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4598                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4599                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4600                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
4601                         index++;
4602                 }
4603                 sprintf(key,"video_codec_%i",index);
4604                 lp_config_clean_section (lc->config,key);
4605         }
4606 }
4607
4608 static void codecs_config_uninit(LinphoneCore *lc)
4609 {
4610         _linphone_core_codec_config_write(lc);
4611         ms_list_free(lc->codecs_conf.audio_codecs);
4612         ms_list_free(lc->codecs_conf.video_codecs);
4613 }
4614
4615 void ui_config_uninit(LinphoneCore* lc)
4616 {
4617         if (lc->friends){
4618                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
4619                 ms_list_free(lc->friends);
4620                 lc->friends=NULL;
4621         }
4622 }
4623
4624 /**
4625  * Returns the LpConfig object used to manage the storage (config) file.
4626  *
4627  * @ingroup misc
4628  * The application can use the LpConfig object to insert its own private
4629  * sections and pairs of key=value in the configuration file.
4630  *
4631 **/
4632 LpConfig *linphone_core_get_config(LinphoneCore *lc){
4633         return lc->config;
4634 }
4635
4636 static void linphone_core_uninit(LinphoneCore *lc)
4637 {
4638         linphone_core_free_hooks(lc);
4639         while(lc->calls)
4640         {
4641                 LinphoneCall *the_call = lc->calls->data;
4642                 linphone_core_terminate_call(lc,the_call);
4643                 linphone_core_iterate(lc);
4644 #ifdef WIN32
4645                 Sleep(50000);
4646 #else
4647                 usleep(50000);
4648 #endif
4649         }
4650         if (lc->friends)
4651                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
4652         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
4653 #ifdef VIDEO_ENABLED
4654         if (lc->previewstream!=NULL){
4655                 video_preview_stop(lc->previewstream);
4656                 lc->previewstream=NULL;
4657         }
4658 #endif
4659         ms_event_queue_destroy(lc->msevq);
4660         lc->msevq=NULL;
4661         /* save all config */
4662         net_config_uninit(lc);
4663         rtp_config_uninit(lc);
4664         if (lc->ringstream) ring_stop(lc->ringstream);
4665         sound_config_uninit(lc);
4666         video_config_uninit(lc);
4667         codecs_config_uninit(lc);
4668         ui_config_uninit(lc);
4669         sip_config_uninit(lc);
4670         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
4671         lp_config_destroy(lc->config);
4672         lc->config = NULL; /* Mark the config as NULL to block further calls */
4673         sip_setup_unregister_all();
4674
4675         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4676         lc->call_logs=ms_list_free(lc->call_logs);
4677
4678         linphone_core_free_payload_types(lc);
4679         ortp_exit();
4680         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
4681 #ifdef TUNNEL_ENABLED
4682         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
4683 #endif
4684 }
4685
4686 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
4687         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
4688         // second get the list of available proxies
4689         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4690         for(;elem!=NULL;elem=elem->next){
4691                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4692                 if (linphone_proxy_config_register_enabled(cfg) ) {
4693                         if (!isReachable) {
4694                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
4695                         }else{
4696                                 cfg->commit=TRUE;
4697                         }
4698                 }
4699         }
4700         lc->netup_time=curtime;
4701         lc->network_reachable=isReachable;
4702         if(!isReachable) {
4703                 sal_reset_transports(lc->sal);
4704         }
4705 }
4706
4707 void linphone_core_refresh_registers(LinphoneCore* lc) {
4708         const MSList *elem;
4709         if (!lc->network_reachable) {
4710                 ms_warning("Refresh register operation not available (network unreachable)");
4711                 return;
4712         }
4713         elem=linphone_core_get_proxy_config_list(lc);
4714         for(;elem!=NULL;elem=elem->next){
4715                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4716                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
4717                         linphone_proxy_config_refresh_register(cfg);
4718                 }
4719         }
4720 }
4721
4722 void __linphone_core_invalidate_registers(LinphoneCore* lc){
4723         const MSList *elem=linphone_core_get_proxy_config_list(lc);
4724         for(;elem!=NULL;elem=elem->next){
4725                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
4726                 if (linphone_proxy_config_register_enabled(cfg)) {
4727                         linphone_proxy_config_edit(cfg);
4728                         linphone_proxy_config_done(cfg);
4729                 }
4730         }
4731 }
4732
4733 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
4734         //first disable automatic mode
4735         if (lc->auto_net_state_mon) {
4736                 ms_message("Disabling automatic network state monitoring");
4737                 lc->auto_net_state_mon=FALSE;
4738         }
4739         set_network_reachable(lc,isReachable, ms_time(NULL));
4740 }
4741
4742 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
4743         return lc->network_reachable;
4744 }
4745 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
4746         return sal_get_socket(lc->sal);
4747 }
4748 /**
4749  * Destroys a LinphoneCore
4750  *
4751  * @ingroup initializing
4752 **/
4753 void linphone_core_destroy(LinphoneCore *lc){
4754         linphone_core_uninit(lc);
4755         ms_free(lc);
4756 }
4757 /**
4758  * Get the number of Call
4759  *
4760  * @ingroup call_control
4761 **/
4762 int linphone_core_get_calls_nb(const LinphoneCore *lc){
4763         return  ms_list_size(lc->calls);;
4764 }
4765
4766 /**
4767  * Check if we do not have exceed the number of simultaneous call
4768  *
4769  * @ingroup call_control
4770 **/
4771 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
4772 {
4773         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
4774                 return TRUE;
4775         ms_message("Maximum amount of simultaneous calls reached !");
4776         return FALSE;
4777 }
4778
4779
4780 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
4781 {
4782         if(linphone_core_can_we_add_call(lc))
4783         {
4784                 lc->calls = ms_list_append(lc->calls,call);
4785                 return 0;
4786         }
4787         return -1;
4788 }
4789
4790 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
4791 {
4792         MSList *it;
4793         MSList *the_calls = lc->calls;
4794
4795         it=ms_list_find(the_calls,call);
4796         if (it)
4797         {
4798                 the_calls = ms_list_remove_link(the_calls,it);
4799         }
4800         else
4801         {
4802                 ms_warning("could not find the call into the list\n");
4803                 return -1;
4804         }
4805         lc->calls = the_calls;
4806         return 0;
4807 }
4808
4809 /**
4810  * Specifiies a ring back tone to be played to far end during incoming calls.
4811 **/
4812 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
4813         if (lc->sound_conf.ringback_tone){
4814                 ms_free(lc->sound_conf.ringback_tone);
4815                 lc->sound_conf.ringback_tone=NULL;
4816         }
4817         if (file)
4818                 lc->sound_conf.ringback_tone=ms_strdup(file);
4819 }
4820
4821 /**
4822  * Returns the ring back tone played to far end during incoming calls.
4823 **/
4824 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
4825         return lc->sound_conf.ringback_tone;
4826 }
4827
4828 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
4829         const MSList *elem;
4830         for(elem=from;elem!=NULL;elem=elem->next){
4831                 PayloadType *pt=(PayloadType*)elem->data;
4832                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
4833                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
4834                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
4835                         return pt;
4836                 }
4837         }
4838         return NULL;
4839 }
4840
4841
4842 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
4843         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
4844         if (result)  {
4845                 return result;
4846         } else {
4847                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
4848                 if (result) {
4849                         return result;
4850                 }
4851         }
4852         /*not found*/
4853         return NULL;
4854 }
4855
4856 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
4857         switch(gs){
4858                 case LinphoneGlobalOff:
4859                         return "LinphoneGlobalOff";
4860                 break;
4861                 case LinphoneGlobalOn:
4862                         return "LinphoneGlobalOn";
4863                 break;
4864                 case LinphoneGlobalStartup:
4865                         return "LinphoneGlobalStartup";
4866                 break;
4867                 case LinphoneGlobalShutdown:
4868                         return "LinphoneGlobalShutdown";
4869                 break;
4870         }
4871         return NULL;
4872 }
4873
4874 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
4875         return lc->state;
4876 }
4877
4878 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
4879         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
4880         linphone_core_init_default_params(lc, p);
4881         return p;
4882 }
4883
4884 const char *linphone_reason_to_string(LinphoneReason err){
4885         switch(err){
4886                 case LinphoneReasonNone:
4887                         return "No error";
4888                 case LinphoneReasonNoResponse:
4889                         return "No response";
4890                 case LinphoneReasonBadCredentials:
4891                         return "Bad credentials";
4892                 case LinphoneReasonDeclined:
4893                         return "Call declined";
4894                 case LinphoneReasonNotFound:
4895                         return "User not found";
4896                 case LinphoneReasonNotAnswered:
4897                         return "Not answered";
4898         }
4899         return "unknown error";
4900 }
4901
4902 const char *linphone_error_to_string(LinphoneReason err){
4903         return linphone_reason_to_string(err);
4904 }
4905 /**
4906  * Enables signaling keep alive
4907  */
4908 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
4909         if (enable > 0) {
4910                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
4911         } else {
4912                 sal_set_keepalive_period(lc->sal,0);
4913         }
4914 }
4915 /**
4916  * Is signaling keep alive enabled
4917  */
4918 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
4919         return sal_get_keepalive_period(lc->sal) > 0;
4920 }
4921
4922 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
4923         get_dtmf_gen(lc); /*make sure ring stream is started*/
4924         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
4925 }
4926
4927 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
4928         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
4929                 ring_stop(lc->ringstream);
4930                 lc->ringstream=NULL;
4931         }
4932 }
4933
4934 int linphone_core_get_max_calls(LinphoneCore *lc) {
4935         return lc->max_calls;
4936 }
4937 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
4938         lc->max_calls=max;
4939 }
4940
4941 typedef struct Hook{
4942         LinphoneCoreIterateHook fun;
4943         void *data;
4944 }Hook;
4945
4946 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
4947         Hook *h=ms_new(Hook,1);
4948         h->fun=hook;
4949         h->data=hook_data;
4950         return h;
4951 }
4952
4953 static void hook_invoke(Hook *h){
4954         h->fun(h->data);
4955 }
4956
4957 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
4958         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
4959 }
4960
4961 static void linphone_core_run_hooks(LinphoneCore *lc){
4962         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
4963 }
4964
4965 static void linphone_core_free_hooks(LinphoneCore *lc){
4966         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
4967         ms_list_free(lc->hooks);
4968         lc->hooks=NULL;
4969 }
4970
4971 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
4972         MSList *elem;
4973         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
4974                 Hook *h=(Hook*)elem->data;
4975                 if (h->fun==hook && h->data==hook_data){
4976                         ms_list_remove_link(lc->hooks,elem);
4977                         ms_free(h);
4978                         return;
4979                 }
4980         }
4981         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
4982 }
4983
4984 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
4985         if (lc->zrtp_secrets_cache != NULL) {
4986                 ms_free(lc->zrtp_secrets_cache);
4987         }
4988         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
4989 }
4990
4991 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
4992         if (uri == NULL) return NULL;
4993         MSList *calls=lc->calls;
4994         while(calls) {
4995                 const LinphoneCall *c=(LinphoneCall*)calls->data;
4996                 calls=calls->next;
4997                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
4998                 char *current_uri=linphone_address_as_string_uri_only(address);
4999                 if (strcmp(uri,current_uri)==0) {
5000                         ms_free(current_uri);
5001                         return c;
5002                 } else {
5003                         ms_free(current_uri);
5004                 }
5005         }
5006         return NULL;
5007 }
5008
5009
5010 /**
5011  * Check if a call will need the sound resources.
5012  *
5013  * @ingroup call_control
5014  * @param lc The LinphoneCore
5015 **/
5016 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5017         MSList *calls=lc->calls;
5018         while(calls) {
5019                 LinphoneCall *c=(LinphoneCall*)calls->data;
5020                 calls=calls->next;
5021                 switch (c->state) {
5022                         case LinphoneCallOutgoingInit:
5023                         case LinphoneCallOutgoingProgress:
5024                         case LinphoneCallOutgoingRinging:
5025                         case LinphoneCallOutgoingEarlyMedia:
5026                         case LinphoneCallConnected:
5027                         case LinphoneCallRefered:
5028                         case LinphoneCallIncomingEarlyMedia:
5029                         case LinphoneCallUpdated:
5030                                 return TRUE;
5031                         default:
5032                                 break;
5033                 }
5034         }
5035         return FALSE;
5036 }
5037
5038 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5039         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5040 }
5041
5042 /**
5043  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5044 **/
5045 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5046         switch(menc){
5047                 case LinphoneMediaEncryptionSRTP:
5048                         return ortp_srtp_supported();
5049                 case LinphoneMediaEncryptionZRTP:
5050                         return ortp_zrtp_available();
5051                 case LinphoneMediaEncryptionNone:
5052                         return TRUE;
5053         }
5054         return FALSE;
5055 }
5056
5057 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5058         const char *type="none";
5059         int ret=0;
5060         if (menc == LinphoneMediaEncryptionSRTP){
5061                 if (!ortp_srtp_supported()){
5062                         ms_warning("SRTP not supported by library.");
5063                         type="none";
5064                         ret=-1;
5065                 }else type="srtp";
5066         }else if (menc == LinphoneMediaEncryptionZRTP){
5067                 if (!ortp_zrtp_available()){
5068                         ms_warning("ZRTP not supported by library.");
5069                         type="none";
5070                         ret=-1;
5071                 }else type="zrtp";
5072         }
5073         lp_config_set_string(lc->config,"sip","media_encryption",type);
5074         return ret;
5075 }
5076
5077 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5078         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5079         
5080         if (menc == NULL)
5081                 return LinphoneMediaEncryptionNone;
5082         else if (strcmp(menc, "srtp")==0)
5083                 return LinphoneMediaEncryptionSRTP;
5084         else if (strcmp(menc, "zrtp")==0)
5085                 return LinphoneMediaEncryptionZRTP;
5086         else
5087                 return LinphoneMediaEncryptionNone;
5088 }
5089
5090 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5091         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5092 }
5093
5094 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5095         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5096 }
5097
5098 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5099         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5100         params->media_encryption=linphone_core_get_media_encryption(lc);
5101         params->in_conference=FALSE;
5102 }
5103
5104 void linphone_call_zoom_video(LinphoneCall* call, float zoom_factor, float* cx, float* cy) {
5105         VideoStream* vstream = call->videostream;
5106         if (vstream) {
5107                 float zoom[3];
5108                 
5109                 if (zoom_factor < 1)
5110                         zoom_factor = 1;
5111                 float halfsize = 0.5 * 1.0 / zoom_factor;
5112
5113                 if ((*cx - halfsize) < 0)
5114                         *cx = 0 + halfsize;
5115                 if ((*cx + halfsize) > 1)
5116                         *cx = 1 - halfsize;
5117                 if ((*cy - halfsize) < 0)
5118                         *cy = 0 + halfsize;
5119                 if ((*cy + halfsize) > 1)
5120                         *cy = 1 - halfsize;
5121         
5122                 zoom[0] = zoom_factor;
5123                 zoom[1] = *cx;
5124                 zoom[2] = *cy;
5125                 ms_filter_call_method(vstream->output, MS_VIDEO_DISPLAY_ZOOM, &zoom);
5126         }else ms_warning("Could not apply zoom: video output wasn't activated.");
5127 }
5128
5129 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5130         if (lc->device_id) ms_free(lc->device_id);
5131         lc->device_id=ms_strdup(device_id);
5132 }
5133 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5134         return lc->device_id;
5135 }
5136
5137 /**
5138  * Set the DSCP field for SIP signaling channel.
5139  * 
5140  * @ingroup network_parameters
5141  * * The DSCP defines the quality of service in IP packets.
5142  * 
5143 **/
5144 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5145         sal_set_dscp(lc->sal,dscp);
5146         if (linphone_core_ready(lc))
5147                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5148 }
5149
5150 /**
5151  * Get the DSCP field for SIP signaling channel.
5152  * 
5153  * @ingroup network_parameters
5154  * * The DSCP defines the quality of service in IP packets.
5155  * 
5156 **/
5157 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5158         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5159 }
5160
5161 /**
5162  * Set the DSCP field for outgoing audio streams.
5163  *
5164  * @ingroup network_parameters
5165  * The DSCP defines the quality of service in IP packets.
5166  * 
5167 **/
5168 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5169         if (linphone_core_ready(lc))
5170                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5171 }
5172
5173 /**
5174  * Get the DSCP field for outgoing audio streams.
5175  *
5176  * @ingroup network_parameters
5177  * The DSCP defines the quality of service in IP packets.
5178  * 
5179 **/
5180 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5181         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5182 }
5183
5184 /**
5185  * Set the DSCP field for outgoing video streams.
5186  *
5187  * @ingroup network_parameters
5188  * The DSCP defines the quality of service in IP packets.
5189  * 
5190 **/
5191 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5192         if (linphone_core_ready(lc))
5193                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5194         
5195 }
5196
5197 /**
5198  * Get the DSCP field for outgoing video streams.
5199  *
5200  * @ingroup network_parameters
5201  * The DSCP defines the quality of service in IP packets.
5202  * 
5203 **/
5204 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5205         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5206 }