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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 #include "linphonecore.h"
21 #include "sipsetup.h"
22 #include "lpconfig.h"
23 #include "private.h"
24
25 #include <ortp/telephonyevents.h>
26 #include "mediastreamer2/mediastream.h"
27 #include "mediastreamer2/mseventqueue.h"
28 #include "mediastreamer2/msvolume.h"
29 #include "mediastreamer2/msequalizer.h"
30 #include "mediastreamer2/dtmfgen.h"
31
32 #ifdef INET6
33 #ifndef WIN32
34 #include <netdb.h>
35 #endif
36 #endif
37
38 /*#define UNSTANDART_GSM_11K 1*/
39
40 static const char *liblinphone_version=LIBLINPHONE_VERSION;
41 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
42
43 #include "enum.h"
44
45 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result);
46 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
47
48 /* relative path where is stored local ring*/
49 #define LOCAL_RING "rings/oldphone.wav"
50 /* same for remote ring (ringback)*/
51 #define REMOTE_RING "ringback.wav"
52
53 extern SalCallbacks linphone_sal_callbacks;
54
55
56 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
57 {
58   obj->_func=func;
59   obj->_user_data=ud;
60 }
61
62 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
63         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
64         return 0;
65 }
66
67                 
68 /*prevent a gcc bug with %c*/
69 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
70 #if !defined(_WIN32_WCE)
71         return strftime(s, max, fmt, tm);
72 #else
73         return 0;
74         /*FIXME*/
75 #endif /*_WIN32_WCE*/
76 }
77
78 static void set_call_log_date(LinphoneCallLog *cl, const struct tm *loctime){
79         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",loctime);
80 }
81
82 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
83         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
84         struct tm loctime;
85         cl->dir=call->dir;
86 #ifdef WIN32
87 #if !defined(_WIN32_WCE)
88         loctime=*localtime(&call->start_time);
89         /*FIXME*/
90 #endif /*_WIN32_WCE*/
91 #else
92         localtime_r(&call->start_time,&loctime);
93 #endif
94         set_call_log_date(cl,&loctime);
95         cl->from=from;
96         cl->to=to;
97         return cl;
98 }
99
100 static void call_logs_write_to_config_file(LinphoneCore *lc){
101         MSList *elem;
102         char logsection[32];
103         int i;
104         char *tmp;
105         LpConfig *cfg=lc->config;
106
107         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
108         
109         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
110                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
111                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
112                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
113                 lp_config_set_int(cfg,logsection,"status",cl->status);
114                 tmp=linphone_address_as_string(cl->from);
115                 lp_config_set_string(cfg,logsection,"from",tmp);
116                 ms_free(tmp);
117                 tmp=linphone_address_as_string(cl->to);
118                 lp_config_set_string(cfg,logsection,"to",tmp);
119                 ms_free(tmp);
120                 lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
121                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
122                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
123         }
124         for(;i<lc->max_call_logs;++i){
125                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
126                 lp_config_clean_section(cfg,logsection);
127         }
128 }
129
130 static void call_logs_read_from_config_file(LinphoneCore *lc){
131         char logsection[32];
132         int i;
133         const char *tmp;
134         LpConfig *cfg=lc->config;
135         for(i=0;;++i){
136                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
137                 if (lp_config_has_section(cfg,logsection)){
138                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
139                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
140                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
141                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
142                         if (tmp) cl->from=linphone_address_new(tmp);
143                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
144                         if (tmp) cl->to=linphone_address_new(tmp);
145                         tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
146                         if (tmp) strncpy(cl->start_date,tmp,sizeof(cl->start_date));
147                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
148                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
149                         if (tmp) cl->refkey=ms_strdup(tmp);
150                         lc->call_logs=ms_list_append(lc->call_logs,cl);
151                 }else break;    
152         }
153 }
154
155
156 void linphone_call_log_completed(LinphoneCallLog *calllog, LinphoneCall *call, LinphoneCallStatus status){
157         LinphoneCore *lc=call->core;
158         
159         calllog->duration=time(NULL)-call->start_time;
160         
161         if (status==LinphoneCallMissed){
162                 char *info;
163                 lc->missed_calls++;
164                 info=ortp_strdup_printf(ngettext("You have missed %i call.",
165                     "You have missed %i calls.", lc->missed_calls),
166                 lc->missed_calls);
167                                 if (lc->vtable.display_status!=NULL)
168                                         lc->vtable.display_status(lc,info);
169                 ms_free(info);
170         }else calllog->status=status;
171         lc->call_logs=ms_list_prepend(lc->call_logs,(void *)calllog);
172         if (ms_list_size(lc->call_logs)>lc->max_call_logs){
173                 MSList *elem,*prevelem=NULL;
174                 /*find the last element*/
175                 for(elem=lc->call_logs;elem!=NULL;elem=elem->next){
176                         prevelem=elem;
177                 }
178                 elem=prevelem;
179                 linphone_call_log_destroy((LinphoneCallLog*)elem->data);
180                 lc->call_logs=ms_list_remove_link(lc->call_logs,elem);
181         }
182         if (lc->vtable.call_log_updated!=NULL){
183                 lc->vtable.call_log_updated(lc,calllog);
184         }
185         call_logs_write_to_config_file(lc);
186 }
187
188 /**
189  * @addtogroup call_logs
190  * @{
191 **/
192
193 /**
194  * Returns a human readable string describing the call.
195  * 
196  * @note: the returned char* must be freed by the application (use ms_free()).
197 **/
198 char * linphone_call_log_to_str(LinphoneCallLog *cl){
199         char *status;
200         char *tmp;
201         char *from=linphone_address_as_string (cl->from);
202         char *to=linphone_address_as_string (cl->to);
203         switch(cl->status){
204                 case LinphoneCallAborted:
205                         status=_("aborted");
206                         break;
207                 case LinphoneCallSuccess:
208                         status=_("completed");
209                         break;
210                 case LinphoneCallMissed:
211                         status=_("missed");
212                         break;
213                 default:
214                         status="unknown";
215         }
216         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
217                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
218                         cl->start_date,
219                         from,
220                         to,
221                         status,
222                         cl->duration/60,
223                         cl->duration%60);
224         ms_free(from);
225         ms_free(to);
226         return tmp;
227 }
228
229 /**
230  * Returns RTP statistics computed locally regarding the call.
231  * 
232 **/
233 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
234         return &cl->local_stats;
235 }
236
237 /**
238  * Returns RTP statistics computed by remote end and sent back via RTCP.
239  *
240  * @note Not implemented yet.
241 **/
242 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
243         return &cl->remote_stats;
244 }
245
246 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
247         cl->user_pointer=up;
248 }
249
250 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
251         return cl->user_pointer;
252 }
253
254
255
256 /**
257  * Associate a persistent reference key to the call log.
258  *
259  * The reference key can be for example an id to an external database.
260  * It is stored in the config file, thus can survive to process exits/restarts.
261  *
262 **/
263 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
264         if (cl->refkey!=NULL){
265                 ms_free(cl->refkey);
266                 cl->refkey=NULL;
267         }
268         if (refkey) cl->refkey=ms_strdup(refkey);
269         call_logs_write_to_config_file(cl->lc);
270 }
271
272 /**
273  * Get the persistent reference key associated to the call log.
274  *
275  * The reference key can be for example an id to an external database.
276  * It is stored in the config file, thus can survive to process exits/restarts.
277  *
278 **/
279 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
280         return cl->refkey;
281 }
282
283 /** @} */
284
285 void linphone_call_log_destroy(LinphoneCallLog *cl){
286         if (cl->from!=NULL) linphone_address_destroy(cl->from);
287         if (cl->to!=NULL) linphone_address_destroy(cl->to);
288         if (cl->refkey!=NULL) ms_free(cl->refkey);
289         ms_free(cl);
290 }
291
292 /**
293  * Returns TRUE if the LinphoneCall asked to autoanswer
294  *
295 **/
296 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
297         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
298         if(call)
299                 return sal_call_autoanswer_asked(call->op);
300         else
301                 return FALSE;
302 }
303
304 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
305         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
306         if (call)  return linphone_call_get_duration(call);
307         return -1;
308 }
309
310 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
311         LinphoneCall *call=linphone_core_get_current_call(lc);
312         if (call==NULL) return NULL;
313         return linphone_call_get_remote_address(call);
314 }
315
316 /**
317  * Enable logs in supplied FILE*.
318  *
319  * @ingroup misc
320  *
321  * @param file a C FILE* where to fprintf logs. If null stdout is used.
322  * 
323 **/
324 void linphone_core_enable_logs(FILE *file){
325         if (file==NULL) file=stdout;
326         ortp_set_log_file(file);
327         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
328 }
329
330 /**
331  * Enable logs through the user's supplied log callback.
332  *
333  * @ingroup misc
334  *
335  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
336  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
337  * 
338 **/
339 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
340         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
341         ortp_set_log_handler(logfunc);
342 }
343
344 /**
345  * Entirely disable logging.
346  *
347  * @ingroup misc
348 **/
349 void linphone_core_disable_logs(){
350         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
351 }
352
353
354 static void net_config_read (LinphoneCore *lc)
355 {
356         int tmp;
357         const char *tmpstr;
358         LpConfig *config=lc->config;
359
360         tmp=lp_config_get_int(config,"net","download_bw",0);
361         linphone_core_set_download_bandwidth(lc,tmp);
362         tmp=lp_config_get_int(config,"net","upload_bw",0);
363         linphone_core_set_upload_bandwidth(lc,tmp);
364         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
365         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
366         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
367         linphone_core_set_nat_address(lc,tmpstr);
368         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
369         linphone_core_set_firewall_policy(lc,tmp);
370         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
371         lc->net_conf.nat_sdp_only=tmp;
372         tmp=lp_config_get_int(lc->config,"net","mtu",0);
373         linphone_core_set_mtu(lc,tmp);
374         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
375         linphone_core_set_download_ptime(lc,tmp);
376
377 }
378
379 static void build_sound_devices_table(LinphoneCore *lc){
380         const char **devices;
381         const char **old;
382         int ndev;
383         int i;
384         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
385         ndev=ms_list_size(elem);
386         devices=ms_malloc((ndev+1)*sizeof(const char *));
387         for (i=0;elem!=NULL;elem=elem->next,i++){
388                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
389         }
390         devices[ndev]=NULL;
391         old=lc->sound_conf.cards;
392         lc->sound_conf.cards=devices;
393         if (old!=NULL) ms_free(old);
394 }
395
396 static void sound_config_read(LinphoneCore *lc)
397 {
398         /*int tmp;*/
399         const char *tmpbuf;
400         const char *devid;
401         float gain=0;
402 #ifdef __linux
403         /*alsadev let the user use custom alsa device within linphone*/
404         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
405         if (devid){
406                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
407                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
408         }
409 #endif
410         /* retrieve all sound devices */
411         build_sound_devices_table(lc);
412
413         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
414         linphone_core_set_playback_device(lc,devid);
415
416         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
417         linphone_core_set_ringer_device(lc,devid);
418
419         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
420         linphone_core_set_capture_device(lc,devid);
421
422 /*
423         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
424         linphone_core_set_play_level(lc,tmp);
425         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
426         linphone_core_set_ring_level(lc,tmp);
427         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
428         linphone_core_set_rec_level(lc,tmp);
429         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
430         linphone_core_set_sound_source(lc,tmpbuf[0]);
431 */
432
433         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
434         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
435         if (ortp_file_exist(tmpbuf)==-1) {
436                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
437         }
438         if (strstr(tmpbuf,".wav")==NULL){
439                 /* it currently uses old sound files, so replace them */
440                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
441         }
442
443         linphone_core_set_ring(lc,tmpbuf);
444
445         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
446         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
447         if (ortp_file_exist(tmpbuf)==-1){
448                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
449         }
450         if (strstr(tmpbuf,".wav")==NULL){
451                 /* it currently uses old sound files, so replace them */
452                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
453         }
454         linphone_core_set_ringback(lc,tmpbuf);
455         check_sound_device(lc);
456         lc->sound_conf.latency=0;
457
458         linphone_core_enable_echo_cancellation(lc,
459             lp_config_get_int(lc->config,"sound","echocancelation",0) |
460             lp_config_get_int(lc->config,"sound","echocancellation",0)
461                 );
462
463         linphone_core_enable_echo_limiter(lc,
464                 lp_config_get_int(lc->config,"sound","echolimiter",0));
465         linphone_core_enable_agc(lc,
466                 lp_config_get_int(lc->config,"sound","agc",0));
467
468         gain=lp_config_get_float(lc->config,"sound","playback_gain_db",0);
469         linphone_core_set_playback_gain_db (lc,gain);
470
471         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
472 }
473
474 static void sip_config_read(LinphoneCore *lc)
475 {
476         char *contact;
477         const char *tmpstr;
478         LCSipTransports tr;
479         int i,tmp;
480         int ipv6;
481
482         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
483         linphone_core_set_use_info_for_dtmf(lc,tmp);
484
485         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
486                 sal_use_session_timers(lc->sal,200);
487         }
488
489         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",0);
490         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
491
492         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
493         if (ipv6==-1){
494                 ipv6=0;
495                 if (host_has_ipv6_network()){
496                         if (lc->vtable.display_message)
497                                 lc->vtable.display_message(lc,_("Your machine appears to be connected to an IPv6 network. By default linphone always uses IPv4. Please update your configuration if you want to use IPv6"));
498                 }
499         }
500         linphone_core_enable_ipv6(lc,ipv6);
501         memset(&tr,0,sizeof(tr));
502         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)) {
503                 tr.udp_port=(0xDFF&+random())+1024;
504         } else {
505                 tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",5060);
506         }
507         if (lp_config_get_int(lc->config,"sip","sip_tcp_random_port",0)) {
508                 tr.tcp_port=(0xDFF&+random())+1024;
509         } else {
510                 tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
511         }
512         /*start listening on ports*/
513         linphone_core_set_sip_transports(lc,&tr);
514
515         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
516         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
517                 const char *hostname=NULL;
518                 const char *username=NULL;
519 #ifdef HAVE_GETENV
520                 hostname=getenv("HOST");
521                 username=getenv("USER");
522                 if (hostname==NULL) hostname=getenv("HOSTNAME");
523 #endif /*HAVE_GETENV*/
524                 if (hostname==NULL)
525                         hostname="unknown-host";
526                 if (username==NULL){
527                         username="toto";
528                 }
529                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
530                 linphone_core_set_primary_contact(lc,contact);
531                 ms_free(contact);
532         }
533
534         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
535         linphone_core_set_guess_hostname(lc,tmp);
536
537
538         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",15);
539         linphone_core_set_inc_timeout(lc,tmp);
540
541         /* get proxies config */
542         for(i=0;; i++){
543                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
544                 if (cfg!=NULL){
545                         linphone_core_add_proxy_config(lc,cfg);
546                 }else{
547                         break;
548                 }
549         }
550         /* get the default proxy */
551         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
552         linphone_core_set_default_proxy_index(lc,tmp);
553
554         /* read authentication information */
555         for(i=0;; i++){
556                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
557                 if (ai!=NULL){
558                         linphone_core_add_auth_info(lc,ai);
559                         linphone_auth_info_destroy(ai);
560                 }else{
561                         break;
562                 }
563         }
564         
565         /*for tuning or test*/
566         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
567         lc->sip_conf.register_only_when_network_is_up=
568                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
569         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
570         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
571         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
572         sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
573         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
574 }
575
576 static void rtp_config_read(LinphoneCore *lc)
577 {
578         int port;
579         int jitt_comp;
580         int nortp_timeout;
581         bool_t rtp_no_xmit_on_audio_mute;
582
583         port=lp_config_get_int(lc->config,"rtp","audio_rtp_port",7078);
584         linphone_core_set_audio_port(lc,port);
585
586         port=lp_config_get_int(lc->config,"rtp","video_rtp_port",9078);
587         if (port==0) port=9078;
588         linphone_core_set_video_port(lc,port);
589
590         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
591         linphone_core_set_audio_jittcomp(lc,jitt_comp);
592         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
593         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
594         linphone_core_set_nortp_timeout(lc,nortp_timeout);
595         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
596         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);      
597 }
598
599 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, const char *recv_fmtp){
600         PayloadType *candidate=NULL;
601         int i;
602         PayloadType *it;
603         for(i=0;i<127;++i){
604                 it=rtp_profile_get_payload(prof,i);
605                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
606                         && (clock_rate==it->clock_rate || clock_rate<=0) ){
607                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
608                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
609                                 /*exact match*/
610                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
611                                 return it;
612                         }else {
613                                 if (candidate){
614                                         if (it->recv_fmtp==NULL) candidate=it;
615                                 }else candidate=it;
616                         }
617                 }
618         }
619         if (candidate && recv_fmtp){
620                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
621         }
622         return candidate;
623 }
624
625 static bool_t get_codec(LpConfig *config, const char* type, int index, PayloadType **ret){
626         char codeckey[50];
627         const char *mime,*fmtp;
628         int rate,enabled;
629         PayloadType *pt;
630
631         *ret=NULL;
632         snprintf(codeckey,50,"%s_%i",type,index);
633         mime=lp_config_get_string(config,codeckey,"mime",NULL);
634         if (mime==NULL || strlen(mime)==0 ) return FALSE;
635
636         rate=lp_config_get_int(config,codeckey,"rate",8000);
637         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
638         enabled=lp_config_get_int(config,codeckey,"enabled",1);
639         pt=find_payload(&av_profile,mime,rate,fmtp);
640         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
641         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
642         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
643                         mime,rate,fmtp ? fmtp : "");
644         *ret=pt;
645         return TRUE;
646 }
647
648 static const char *codec_pref_order[]={
649         "speex",
650         "gsm",
651         "pcmu",
652         "pcma",
653         "H264",
654         "MP4V-ES",
655         "theora",
656         "H263-1998",
657         "H263",
658         NULL,
659 };
660
661 static int find_codec_rank(const char *mime){
662         int i;
663         for(i=0;codec_pref_order[i]!=NULL;++i){
664                 if (strcasecmp(codec_pref_order[i],mime)==0)
665                         break;
666         }
667         return i;
668 }
669
670 static int codec_compare(const PayloadType *a, const PayloadType *b){
671         int ra,rb;
672         ra=find_codec_rank(a->mime_type);
673         rb=find_codec_rank(b->mime_type);
674         if (ra>rb) return 1;
675         if (ra<rb) return -1;
676         return 0;
677 }
678
679 static MSList *add_missing_codecs(SalStreamType mtype, MSList *l){
680         int i;
681         for(i=0;i<127;++i){
682                 PayloadType *pt=rtp_profile_get_payload(&av_profile,i);
683                 if (pt){
684                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
685                                 pt=NULL;
686                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED 
687                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
688                                 pt=NULL;
689                         }
690                         if (pt && ms_filter_codec_supported(pt->mime_type)){
691                                 if (ms_list_find(l,pt)==NULL){
692                                         payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
693                                         ms_message("Adding new codec %s/%i with fmtp %s",
694                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
695                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
696                                 }
697                         }
698                 }
699         }
700         return l;
701 }
702
703 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
704         MSList *elem;
705         for (elem=l;elem!=NULL;elem=elem->next){
706                 PayloadType *ept=(PayloadType*)elem->data;
707                 if (pt==ept)
708                         return l;
709         }
710         l=ms_list_append(l,pt);
711         return l;
712 }
713
714 static void codecs_config_read(LinphoneCore *lc)
715 {
716         int i;
717         PayloadType *pt;
718         MSList *audio_codecs=NULL;
719         MSList *video_codecs=NULL;
720         for (i=0;get_codec(lc->config,"audio_codec",i,&pt);i++){
721                 if (pt){
722                         if (!ms_filter_codec_supported(pt->mime_type)){
723                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
724                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
725                 }
726         }
727         audio_codecs=add_missing_codecs(SalAudio,audio_codecs);
728         for (i=0;get_codec(lc->config,"video_codec",i,&pt);i++){
729                 if (pt){
730                         if (!ms_filter_codec_supported(pt->mime_type)){
731                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
732                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
733                 }
734         }
735         video_codecs=add_missing_codecs(SalVideo,video_codecs);
736         linphone_core_set_audio_codecs(lc,audio_codecs);
737         linphone_core_set_video_codecs(lc,video_codecs);
738         linphone_core_update_allocated_audio_bandwidth(lc);
739 }
740
741 static void video_config_read(LinphoneCore *lc){
742         int capture, display, self_view;
743         int enabled;
744         const char *str;
745         int ndev;
746         const char **devices;
747         const MSList *elem;
748         int i;
749
750         /* retrieve all video devices */
751         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
752         ndev=ms_list_size(elem);
753         devices=ms_malloc((ndev+1)*sizeof(const char *));
754         for (i=0;elem!=NULL;elem=elem->next,i++){
755                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
756         }
757         devices[ndev]=NULL;
758         lc->video_conf.cams=devices;
759
760         str=lp_config_get_string(lc->config,"video","device",NULL);
761         if (str && str[0]==0) str=NULL;
762         linphone_core_set_video_device(lc,str);
763
764         linphone_core_set_preferred_video_size_by_name(lc,
765                 lp_config_get_string(lc->config,"video","size","cif"));
766
767         enabled=lp_config_get_int(lc->config,"video","enabled",1);
768         capture=lp_config_get_int(lc->config,"video","capture",enabled);
769         display=lp_config_get_int(lc->config,"video","display",enabled);
770         self_view=lp_config_get_int(lc->config,"video","self_view",enabled);
771         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
772         if(lc->video_conf.displaytype)
773                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
774 #ifdef VIDEO_ENABLED
775         linphone_core_enable_video(lc,capture,display);
776         linphone_core_enable_self_view(lc,self_view);
777 #endif
778 }
779
780 static void ui_config_read(LinphoneCore *lc)
781 {
782         LinphoneFriend *lf;
783         int i;
784         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
785                 linphone_core_add_friend(lc,lf);
786         }
787         call_logs_read_from_config_file(lc);
788 }
789
790 /*
791 static void autoreplier_config_init(LinphoneCore *lc)
792 {
793         autoreplier_config_t *config=&lc->autoreplier_conf;
794         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
795         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
796         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
797         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
798         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
799         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
800 }
801 */
802
803 /**
804  * Sets maximum available download bandwidth
805  *
806  * @ingroup media_parameters
807  *
808  * This is IP bandwidth, in kbit/s.
809  * This information is used signaled to other parties during
810  * calls (within SDP messages) so that the remote end can have
811  * sufficient knowledge to properly configure its audio & video
812  * codec output bitrate to not overflow available bandwidth.
813  *
814  * @param lc the LinphoneCore object
815  * @param bw the bandwidth in kbits/s, 0 for infinite
816  */
817 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
818         lc->net_conf.download_bw=bw;
819 }
820
821 /**
822  * Sets maximum available upload bandwidth
823  *
824  * @ingroup media_parameters
825  *
826  * This is IP bandwidth, in kbit/s.
827  * This information is used by liblinphone together with remote
828  * side available bandwidth signaled in SDP messages to properly
829  * configure audio & video codec's output bitrate.
830  *
831  * @param lc the LinphoneCore object
832  * @param bw the bandwidth in kbits/s, 0 for infinite
833  */
834 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
835         lc->net_conf.upload_bw=bw;
836 }
837
838 /**
839  * Retrieve the maximum available download bandwidth.
840  *
841  * @ingroup media_parameters
842  *
843  * This value was set by linphone_core_set_download_bandwidth().
844  *
845 **/
846 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
847         return lc->net_conf.download_bw;
848 }
849
850 /**
851  * Retrieve the maximum available upload bandwidth.
852  *
853  * @ingroup media_parameters
854  *
855  * This value was set by linphone_core_set_upload_bandwidth().
856  *
857 **/
858 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
859         return lc->net_conf.upload_bw;
860 }
861 /**
862  * set audio packetization time linphone expect to received from peer
863  */
864 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
865         lc->net_conf.down_ptime=ptime;
866 }
867
868 int  linphone_core_get_download_ptime(LinphoneCore *lc) {
869         return lc->net_conf.down_ptime;
870 }
871
872
873 /**
874  * Returns liblinphone's version as a string.
875  *
876  * @ingroup misc
877  *
878 **/
879 const char * linphone_core_get_version(void){
880         return liblinphone_version;
881 }
882
883
884 static MSList *linphone_payload_types=NULL;
885
886 static void linphone_core_assign_payload_type(PayloadType *const_pt, int number, const char *recv_fmtp){
887         PayloadType *pt;
888         pt=payload_type_clone(const_pt);
889         payload_type_set_number(pt,number);
890         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
891         rtp_profile_set_payload(&av_profile,number,pt);
892         linphone_payload_types=ms_list_append(linphone_payload_types,pt);
893 }
894
895 static void linphone_core_free_payload_types(void){
896         ms_list_for_each(linphone_payload_types,(void (*)(void*))payload_type_destroy);
897         ms_list_free(linphone_payload_types);
898         linphone_payload_types=NULL;
899 }
900
901 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
902         lc->state=gstate;
903         if (lc->vtable.global_state_changed){
904                 lc->vtable.global_state_changed(lc,gstate,message);
905         }
906 }
907
908 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path, 
909     const char *factory_config_path, void * userdata)
910 {
911         memset (lc, 0, sizeof (LinphoneCore));
912         lc->data=userdata;
913
914         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
915
916         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
917         ortp_init();
918         linphone_core_assign_payload_type(&payload_type_pcmu8000,0,NULL);
919         linphone_core_assign_payload_type(&payload_type_gsm,3,NULL);
920         linphone_core_assign_payload_type(&payload_type_pcma8000,8,NULL);
921         linphone_core_assign_payload_type(&payload_type_lpc1015,115,NULL);
922         linphone_core_assign_payload_type(&payload_type_speex_nb,110,"vbr=on");
923         linphone_core_assign_payload_type(&payload_type_speex_wb,111,"vbr=on");
924         linphone_core_assign_payload_type(&payload_type_speex_uwb,112,"vbr=on");
925         linphone_core_assign_payload_type(&payload_type_telephone_event,101,"0-11");
926         linphone_core_assign_payload_type(&payload_type_ilbc,113,"mode=30");
927         linphone_core_assign_payload_type(&payload_type_amr,114,"octet-align=1");
928
929 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
930         /*shorten the DNS lookup time and send more retransmissions on mobiles:
931          - to workaround potential packet losses
932          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
933          */
934         _linphone_core_configure_resolver();
935 #endif
936
937 #ifdef ENABLE_NONSTANDARD_GSM
938         {
939                 PayloadType *pt;
940                 pt=payload_type_clone(&payload_type_gsm);
941                 pt->clock_rate=11025;
942                 rtp_profile_set_payload(&av_profile,114,pt);
943                 linphone_payload_types=ms_list_append(linphone_payload_types,pt);
944                 pt=payload_type_clone(&payload_type_gsm);
945                 pt->clock_rate=22050;
946                 rtp_profile_set_payload(&av_profile,115,pt);
947                 linphone_payload_types=ms_list_append(linphone_payload_types,pt);
948         }
949 #endif
950
951 #ifdef VIDEO_ENABLED
952         linphone_core_assign_payload_type(&payload_type_h263,34,NULL);
953         linphone_core_assign_payload_type(&payload_type_theora,97,NULL);
954         linphone_core_assign_payload_type(&payload_type_h263_1998,98,"CIF=1;QCIF=1");
955         linphone_core_assign_payload_type(&payload_type_mp4v,99,"profile-level-id=3");
956         linphone_core_assign_payload_type(&payload_type_x_snow,100,NULL);
957         linphone_core_assign_payload_type(&payload_type_h264,102,NULL);
958         linphone_core_assign_payload_type(&payload_type_h264,103,"packetization-mode=1");
959 #endif
960
961         ms_init();
962         /* create a mediastreamer2 event queue and set it as global */
963         /* This allows to run event's callback in linphone_core_iterate() */
964         lc->msevq=ms_event_queue_new();
965         ms_set_global_event_queue(lc->msevq);
966
967         lc->config=lp_config_new(config_path);
968         if (factory_config_path)
969                 lp_config_read_file(lc->config,factory_config_path);
970
971         lc->sal=sal_init();
972         sal_set_user_pointer(lc->sal,lc);
973         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
974         
975         sip_setup_register_all();
976         sound_config_read(lc);
977         net_config_read(lc);
978         rtp_config_read(lc);
979         codecs_config_read(lc);
980         sip_config_read(lc); /* this will start eXosip*/
981         video_config_read(lc);
982         //autoreplier_config_init(&lc->autoreplier_conf);
983         lc->presence_mode=LinphoneStatusOnline;
984         lc->max_call_logs=15;
985         ui_config_read(lc);
986         if (lc->vtable.display_status)
987                 lc->vtable.display_status(lc,_("Ready"));
988         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
989         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
990 }
991
992 /**
993  * Instanciates a LinphoneCore object.
994  * @ingroup initializing
995  * 
996  * The LinphoneCore object is the primary handle for doing all phone actions.
997  * It should be unique within your application.
998  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
999  * @param config_path a path to a config file. If it does not exists it will be created.
1000  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1001  *             become persistent over the life of the LinphoneCore object.
1002  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1003  * @param factory_config_path a path to a read-only config file that can be used to 
1004  *        to store hard-coded preference such as proxy settings or internal preferences.
1005  *        The settings in this factory file always override the one in the normal config file.
1006  *        It is OPTIONAL, use NULL if unneeded.
1007  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1008  *        callbacks) using linphone_core_get_user_data().
1009  * 
1010 **/
1011 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1012                                                 const char *config_path, const char *factory_config_path, void * userdata)
1013 {
1014         LinphoneCore *core=ms_new(LinphoneCore,1);
1015         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1016         return core;
1017 }
1018
1019 /**
1020  * Returns the list of available audio codecs.
1021  *
1022  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1023  * structure holding the codec information.
1024  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1025  * (such as the order of codecs).
1026 **/
1027 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1028 {
1029         return lc->codecs_conf.audio_codecs;
1030 }
1031
1032 /**
1033  * Returns the list of available video codecs.
1034  *
1035  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1036  * structure holding the codec information.
1037  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1038  * (such as the order of codecs).
1039 **/
1040 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1041 {
1042         return lc->codecs_conf.video_codecs;
1043 }
1044
1045 /**
1046  * Sets the local "from" identity.
1047  *
1048  * @ingroup proxies
1049  * This data is used in absence of any proxy configuration or when no
1050  * default proxy configuration is set. See LinphoneProxyConfig
1051 **/
1052 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1053 {
1054         LinphoneAddress *ctt;
1055
1056         if ((ctt=linphone_address_new(contact))==0) {
1057                 ms_error("Bad contact url: %s",contact);
1058                 return -1;
1059         }
1060         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1061         lc->sip_conf.contact=ms_strdup(contact);
1062         if (lc->sip_conf.guessed_contact!=NULL){
1063                 ms_free(lc->sip_conf.guessed_contact);
1064                 lc->sip_conf.guessed_contact=NULL;
1065         }
1066         linphone_address_destroy(ctt);
1067         return 0;
1068 }
1069
1070
1071 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1072 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1073         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1074             && linphone_core_get_nat_address(lc)!=NULL){
1075                 strncpy(result,linphone_core_get_nat_address(lc),LINPHONE_IPADDR_SIZE);
1076                 return;
1077         }
1078         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1079                 return;
1080         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1081         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1082 }
1083
1084 static void update_primary_contact(LinphoneCore *lc){
1085         char *guessed=NULL;
1086         char tmp[LINPHONE_IPADDR_SIZE];
1087
1088         LinphoneAddress *url;
1089         if (lc->sip_conf.guessed_contact!=NULL){
1090                 ms_free(lc->sip_conf.guessed_contact);
1091                 lc->sip_conf.guessed_contact=NULL;
1092         }
1093         url=linphone_address_new(lc->sip_conf.contact);
1094         if (!url){
1095                 ms_error("Could not parse identity contact !");
1096                 url=linphone_address_new("sip:unknown@unkwownhost");
1097         }
1098         linphone_core_get_local_ip(lc, NULL, tmp);
1099         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1100                 ms_warning("Local loopback network only !");
1101                 lc->sip_conf.loopback_only=TRUE;
1102         }else lc->sip_conf.loopback_only=FALSE;
1103         linphone_address_set_domain(url,tmp);
1104         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1105         guessed=linphone_address_as_string(url);
1106         lc->sip_conf.guessed_contact=guessed;
1107         linphone_address_destroy(url);
1108 }
1109
1110 /**
1111  * Returns the default identity when no proxy configuration is used.
1112  *
1113  * @ingroup proxies
1114 **/
1115 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1116         char *identity;
1117         
1118         if (lc->sip_conf.guess_hostname){
1119                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1120                         update_primary_contact(lc);
1121                 }
1122                 identity=lc->sip_conf.guessed_contact;
1123         }else{
1124                 identity=lc->sip_conf.contact;
1125         }
1126         return identity;
1127 }
1128
1129 /**
1130  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1131  *
1132  * @ingroup proxies
1133 **/
1134 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1135         lc->sip_conf.guess_hostname=val;
1136 }
1137
1138 /**
1139  * Returns TRUE if hostname part of primary contact is guessed automatically.
1140  *
1141  * @ingroup proxies
1142 **/
1143 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1144         return lc->sip_conf.guess_hostname;
1145 }
1146
1147 /**
1148  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1149  * instead of const char*
1150  *
1151  * @ingroup proxies
1152 **/
1153 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1154         return linphone_address_new(linphone_core_get_primary_contact(lc));
1155 }
1156
1157 /**
1158  * Sets the list of audio codecs.
1159  *
1160  * @ingroup media_parameters
1161  * The list is taken by the LinphoneCore thus the application should not free it.
1162  * This list is made of struct PayloadType describing the codec parameters.
1163 **/
1164 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1165 {
1166         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1167         lc->codecs_conf.audio_codecs=codecs;
1168         return 0;
1169 }
1170
1171 /**
1172  * Sets the list of video codecs.
1173  *
1174  * @ingroup media_parameters
1175  * The list is taken by the LinphoneCore thus the application should not free it.
1176  * This list is made of struct PayloadType describing the codec parameters.
1177 **/
1178 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1179 {
1180         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1181         lc->codecs_conf.video_codecs=codecs;
1182         return 0;
1183 }
1184
1185 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1186 {
1187         return lc->friends;
1188 }
1189
1190 /**
1191  * Returns the nominal jitter buffer size in milliseconds.
1192  *
1193  * @ingroup media_parameters
1194 **/
1195 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1196 {
1197         return lc->rtp_conf.audio_jitt_comp;
1198 }
1199
1200 /**
1201  * Returns the UDP port used for audio streaming.
1202  *
1203  * @ingroup network_parameters
1204 **/
1205 int linphone_core_get_audio_port(const LinphoneCore *lc)
1206 {
1207         return lc->rtp_conf.audio_rtp_port;
1208 }
1209
1210 /**
1211  * Returns the UDP port used for video streaming.
1212  *
1213  * @ingroup network_parameters
1214 **/
1215 int linphone_core_get_video_port(const LinphoneCore *lc){
1216         return lc->rtp_conf.video_rtp_port;
1217 }
1218
1219
1220 /**
1221  * Returns the value in seconds of the no-rtp timeout.
1222  *
1223  * @ingroup media_parameters
1224  * When no RTP or RTCP packets have been received for a while
1225  * LinphoneCore will consider the call is broken (remote end crashed or
1226  * disconnected from the network), and thus will terminate the call.
1227  * The no-rtp timeout is the duration above which the call is considered broken.
1228 **/
1229 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1230         return lc->rtp_conf.nortp_timeout;
1231 }
1232
1233 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1234         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1235 }
1236
1237 /**
1238  * Sets the nominal audio jitter buffer size in milliseconds.
1239  *
1240  * @ingroup media_parameters
1241 **/
1242 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1243 {
1244         lc->rtp_conf.audio_jitt_comp=value;
1245 }
1246
1247 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1248         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1249 }
1250
1251 /**
1252  * Sets the UDP port used for audio streaming.
1253  *
1254  * @ingroup network_parameters
1255 **/
1256 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1257 {
1258         lc->rtp_conf.audio_rtp_port=port;
1259 }
1260
1261 /**
1262  * Sets the UDP port used for video streaming.
1263  *
1264  * @ingroup network_parameters
1265 **/
1266 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1267         lc->rtp_conf.video_rtp_port=port;
1268 }
1269
1270 /**
1271  * Sets the no-rtp timeout value in seconds.
1272  * 
1273  * @ingroup media_parameters
1274  * See linphone_core_get_nortp_timeout() for details.
1275 **/
1276 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1277         lc->rtp_conf.nortp_timeout=nortp_timeout;
1278 }
1279
1280 /**
1281  * Indicates whether SIP INFO is used for sending digits.
1282  *
1283  * @ingroup media_parameters
1284 **/
1285 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1286 {
1287         return lc->sip_conf.use_info;
1288 }
1289
1290 /**
1291  * Sets whether SIP INFO is to be used for sending digits.
1292  *
1293  * @ingroup media_parameters
1294 **/
1295 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1296 {
1297         lc->sip_conf.use_info=use_info;
1298 }
1299
1300 /**
1301  * Indicates whether RFC2833 is used for sending digits.
1302  *
1303  * @ingroup media_parameters
1304 **/
1305 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1306 {
1307         return lc->sip_conf.use_rfc2833;
1308 }
1309
1310 /**
1311  * Sets whether RFC2833 is to be used for sending digits.
1312  *
1313  * @ingroup media_parameters
1314 **/
1315 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1316 {
1317         lc->sip_conf.use_rfc2833=use_rfc2833;
1318 }
1319
1320 /**
1321  * Returns the UDP port used by SIP.
1322  *
1323  * Deprecated: use linphone_core_get_sip_transports() instead.
1324  * @ingroup network_parameters
1325 **/
1326 int linphone_core_get_sip_port(LinphoneCore *lc)
1327 {
1328         LCSipTransports *tr=&lc->sip_conf.transports;
1329         return tr->udp_port>0 ? tr->udp_port : tr->tcp_port;
1330 }
1331
1332 static char _ua_name[64]="Linphone";
1333 static char _ua_version[64]=LINPHONE_VERSION;
1334
1335 #ifdef HAVE_EXOSIP_GET_VERSION
1336 extern const char *eXosip_get_version();
1337 #endif
1338
1339 static void apply_user_agent(LinphoneCore *lc){
1340         char ua_string[256];
1341         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1342 #ifdef HAVE_EXOSIP_GET_VERSION
1343                  eXosip_get_version()
1344 #else
1345                  "unknown"
1346 #endif
1347         );
1348         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1349 }
1350
1351 /**
1352  * Sets the user agent string used in SIP messages.
1353  *
1354  * @ingroup misc
1355 **/
1356 void linphone_core_set_user_agent(const char *name, const char *ver){
1357         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1358         strncpy(_ua_version,ver,sizeof(_ua_version));
1359 }
1360
1361 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1362         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1363         ms_warning(msg);
1364         if (lc->vtable.display_warning)
1365                 lc->vtable.display_warning(lc,msg);
1366         ms_free(msg);
1367 }
1368
1369 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1370         return
1371                 tr2->udp_port==tr1->udp_port &&
1372                 tr2->tcp_port==tr1->tcp_port &&
1373                 tr2->dtls_port==tr1->dtls_port &&
1374                 tr2->tls_port==tr1->tls_port;
1375 }
1376
1377 static int apply_transports(LinphoneCore *lc){
1378         Sal *sal=lc->sal;
1379         const char *anyaddr;
1380         LCSipTransports *tr=&lc->sip_conf.transports;
1381
1382         if (lc->sip_conf.ipv6_enabled)
1383                 anyaddr="::0";
1384         else
1385                 anyaddr="0.0.0.0";
1386
1387         sal_unlisten_ports (sal);
1388         if (tr->udp_port>0){
1389                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportDatagram,FALSE)!=0){
1390                         transport_error(lc,"UDP",tr->udp_port);
1391                         return -1;
1392                 }
1393         }
1394         if (tr->tcp_port>0){
1395                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportStream,FALSE)!=0){
1396                         transport_error(lc,"TCP",tr->tcp_port);
1397                 }
1398         }
1399         apply_user_agent(lc);
1400         return 0;
1401 }
1402
1403 /**
1404  * Sets the ports to be used for each of transport (UDP or TCP)
1405  *
1406  * A zero value port for a given transport means the transport
1407  * is not used.
1408  *
1409  * @ingroup network_parameters
1410 **/
1411 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1412         
1413         if (transports_unchanged(tr,&lc->sip_conf.transports))
1414                 return 0;
1415         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1416         
1417         if (lc->sal==NULL) return 0;
1418         return apply_transports(lc);
1419 }
1420
1421 /**
1422  * Retrieves the ports used for each transport (udp, tcp).
1423  * A zero value port for a given transport means the transport
1424  * is not used.
1425  * @ingroup network_parameters
1426 **/
1427 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1428         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1429         return 0;
1430 }
1431
1432 /**
1433  * Sets the UDP port to be used by SIP.
1434  *
1435  * Deprecated: use linphone_core_set_sip_transports() instead.
1436  * @ingroup network_parameters
1437 **/
1438 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1439 {
1440         LCSipTransports tr;
1441         memset(&tr,0,sizeof(tr));
1442         tr.udp_port=port;
1443         linphone_core_set_sip_transports (lc,&tr);
1444 }
1445
1446 /**
1447  * Returns TRUE if IPv6 is enabled.
1448  *
1449  * @ingroup network_parameters
1450  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1451 **/
1452 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1453         return lc->sip_conf.ipv6_enabled;
1454 }
1455
1456 /**
1457  * Turns IPv6 support on or off.
1458  *
1459  * @ingroup network_parameters
1460  *
1461  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1462  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1463  * By default IPv6 support is off.
1464 **/
1465 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1466         if (lc->sip_conf.ipv6_enabled!=val){
1467                 lc->sip_conf.ipv6_enabled=val;
1468                 if (lc->sal){
1469                         /* we need to restart eXosip */
1470                         apply_transports(lc);
1471                 }
1472         }
1473 }
1474
1475 static void display_bandwidth(RtpSession *as, RtpSession *vs){
1476         ms_message("bandwidth usage: audio=[d=%.1f,u=%.1f] video=[d=%.1f,u=%.1f] kbit/sec",
1477         (as!=NULL) ? (rtp_session_compute_recv_bandwidth(as)*1e-3) : 0,
1478         (as!=NULL) ? (rtp_session_compute_send_bandwidth(as)*1e-3) : 0,
1479         (vs!=NULL) ? (rtp_session_compute_recv_bandwidth(vs)*1e-3) : 0,
1480         (vs!=NULL) ? (rtp_session_compute_send_bandwidth(vs)*1e-3) : 0);
1481 }
1482
1483 static void linphone_core_disconnected(LinphoneCore *lc, LinphoneCall *call){
1484         char temp[256];
1485         char *from=NULL;
1486         if(call)
1487                 from = linphone_call_get_remote_address_as_string(call);
1488         if(from)
1489         {
1490                 snprintf(temp,sizeof(temp),"Remote end %s seems to have disconnected, the call is going to be closed.",from);
1491                 free(from);
1492         }               
1493         else
1494         {
1495                 snprintf(temp,sizeof(temp),"Remote end seems to have disconnected, the call is going to be closed.");
1496         }
1497         if (lc->vtable.display_warning!=NULL)
1498                 lc->vtable.display_warning(lc,temp);
1499         linphone_core_terminate_call(lc,call);
1500 }
1501
1502 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1503         static time_t last_check=0;
1504         static bool_t last_status=FALSE;
1505         char result[LINPHONE_IPADDR_SIZE];
1506         bool_t new_status=last_status;
1507
1508         /* only do the network up checking every five seconds */
1509         if (last_check==0 || (curtime-last_check)>=5){
1510                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1511                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1512                         new_status=TRUE;
1513                 }else new_status=FALSE;
1514                 last_check=curtime;
1515                 if (new_status!=last_status) {
1516                         if (new_status){
1517                                 ms_message("New local ip address is %s",result);
1518                         }
1519                         set_network_reachable(lc,new_status, curtime);
1520                         last_status=new_status;
1521                 }
1522         }
1523 }
1524
1525 static void proxy_update(LinphoneCore *lc){
1526         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1527         MSList* list=ms_list_copy(lc->sip_conf.deleted_proxies);
1528         for(;list!=NULL;list=list->next){
1529                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*) list->data;
1530                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1531                         lc->sip_conf.deleted_proxies =ms_list_remove(lc->sip_conf.deleted_proxies,(void *)cfg);
1532                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1533                         linphone_proxy_config_destroy(cfg);
1534                 }
1535         }
1536         ms_list_free(list);
1537 }
1538
1539 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1540         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1541         if (lf!=NULL){
1542                 lf->info=info;
1543                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1544                 if (lc->vtable.buddy_info_updated)
1545                         lc->vtable.buddy_info_updated(lc,lf);
1546         }else{
1547                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1548         }
1549 }
1550
1551 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1552         MSList *elem;
1553         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1554         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1555                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1556                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1557                         if (req->results!=NULL){
1558                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1559                                 ms_list_free(req->results);
1560                                 req->results=NULL;
1561                                 assign_buddy_info(lc,i);
1562                         }
1563                         sip_setup_context_buddy_lookup_free(ctx,req);
1564                         elem->data=NULL;
1565                 }
1566         }
1567         /*purge completed requests */
1568         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1569                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1570         }
1571 }
1572
1573 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1574         const MSList *elem;
1575         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1576         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1577                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1578                 if (lf->info==NULL){
1579                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1580                                 if (linphone_address_get_username(lf->uri)!=NULL){
1581                                         BuddyLookupRequest *req;
1582                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1583                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1584                                         buddy_lookup_request_set_key(req,tmp);
1585                                         buddy_lookup_request_set_max_results(req,1);
1586                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1587                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1588                                         ms_free(tmp);
1589                                 }
1590                         }
1591                 }
1592         }
1593 }
1594
1595 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1596         LinphoneProxyConfig *cfg=NULL;
1597         linphone_core_get_default_proxy(lc,&cfg);
1598         if (cfg){
1599                 if (lc->bl_refresh){
1600                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1601                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1602                                 linphone_core_grab_buddy_infos(lc,cfg);
1603                                 lc->bl_refresh=FALSE;
1604                         }
1605                 }
1606                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1607         }
1608 }
1609
1610 /**
1611  * Main loop function. It is crucial that your application call it periodically.
1612  *
1613  * @ingroup initializing
1614  * linphone_core_iterate() performs various backgrounds tasks:
1615  * - receiving of SIP messages
1616  * - handles timers and timeout
1617  * - performs registration to proxies
1618  * - authentication retries
1619  * The application MUST call this function from periodically, in its main loop.
1620  * Be careful that this function must be call from the same thread as
1621  * other liblinphone methods. In not the case make sure all liblinphone calls are 
1622  * serialized with a mutex.
1623 **/
1624 void linphone_core_iterate(LinphoneCore *lc){
1625         MSList *calls;
1626         LinphoneCall *call;
1627         int disconnect_timeout = linphone_core_get_nortp_timeout(lc);
1628         time_t curtime=time(NULL);
1629         int elapsed;
1630         bool_t one_second_elapsed=FALSE;
1631         bool_t disconnected=FALSE;
1632
1633         if (curtime-lc->prevtime>=1){
1634                 lc->prevtime=curtime;
1635                 one_second_elapsed=TRUE;
1636         }
1637
1638         if (lc->preview_finished){
1639                 lc->preview_finished=0;
1640                 ring_stop(lc->ringstream);
1641                 lc->ringstream=NULL;
1642                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1643         }
1644
1645         if (lc->ringstream && lc->dmfs_playing_start_time!=0 
1646             && (curtime-lc->dmfs_playing_start_time)>5){
1647                 ring_stop(lc->ringstream);
1648                 lc->ringstream=NULL;
1649                 lc->dmfs_playing_start_time=0;
1650         }
1651
1652         sal_iterate(lc->sal);
1653         if (lc->msevq) ms_event_queue_pump(lc->msevq);
1654         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1655
1656         proxy_update(lc);
1657
1658         //we have to iterate for each call
1659         calls= lc->calls;
1660         while(calls!= NULL){
1661                 call = (LinphoneCall *)calls->data;
1662                  /* get immediately a reference to next one in case the one
1663                  we are going to examine is destroy and removed during
1664                  linphone_core_start_invite() */
1665                 calls=calls->next;
1666                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
1667                                 /*start the call even if the OPTIONS reply did not arrive*/
1668                                 linphone_core_start_invite(lc,call,NULL);
1669                         }
1670                 if (call->dir==LinphoneCallIncoming && call->state==LinphoneCallOutgoingRinging){
1671                         elapsed=curtime-call->start_time;
1672                         ms_message("incoming call ringing for %i seconds",elapsed);
1673                         if (elapsed>lc->sip_conf.inc_timeout){
1674                                 call->log->status=LinphoneCallMissed;
1675                                 linphone_core_terminate_call(lc,call);
1676                         }
1677                 }
1678         }
1679         call = linphone_core_get_current_call(lc);
1680         if(call)
1681         {
1682                 if (call->state==LinphoneCallStreamsRunning && one_second_elapsed)
1683                 {
1684                         RtpSession *as=NULL,*vs=NULL;
1685                         lc->prevtime=curtime;
1686                         if (call->audiostream!=NULL)
1687                                 as=call->audiostream->session;
1688                         if (call->videostream!=NULL)
1689                                 vs=call->videostream->session;
1690                         display_bandwidth(as,vs);
1691                 }
1692 #ifdef VIDEO_ENABLED
1693                 if (call->videostream!=NULL)
1694                         video_stream_iterate(call->videostream);
1695 #endif
1696                 if (call->audiostream!=NULL && disconnect_timeout>0)
1697                         disconnected=!audio_stream_alive(call->audiostream,disconnect_timeout);
1698         }
1699         if (linphone_core_video_preview_enabled(lc)){
1700                 if (lc->previewstream==NULL && lc->calls==NULL)
1701                         toggle_video_preview(lc,TRUE);
1702 #ifdef VIDEO_ENABLED
1703                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
1704 #endif
1705         }else{
1706                 if (lc->previewstream!=NULL)
1707                         toggle_video_preview(lc,FALSE);
1708         }
1709         if (disconnected)
1710                 linphone_core_disconnected(lc,call);
1711
1712         linphone_core_do_plugin_tasks(lc);
1713
1714         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
1715             (curtime-lc->netup_time)>3){
1716                 linphone_core_send_initial_subscribes(lc);
1717                 lc->initial_subscribes_sent=TRUE;
1718         }
1719
1720         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
1721                 lp_config_sync(lc->config);
1722         }
1723 }
1724
1725 /**
1726  * Interpret a call destination as supplied by the user, and returns a fully qualified
1727  * LinphoneAddress.
1728  *
1729  * A sip address should look like DisplayName <sip:username@domain:port> .
1730  * Basically this function performs the following tasks
1731  * - if a phone number is entered, prepend country prefix of the default proxy
1732  *   configuration, eventually escape the '+' by 00.
1733  * - if no domain part is supplied, append the domain name of the default proxy
1734  * - if no sip: is present, prepend it
1735  * 
1736  * The result is a syntaxically correct SIP address.
1737 **/
1738
1739 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
1740         enum_lookup_res_t *enumres=NULL;
1741         char *enum_domain=NULL;
1742         LinphoneProxyConfig *proxy=lc->default_proxy;;
1743         char *tmpurl;
1744         LinphoneAddress *uri;
1745         
1746         if (is_enum(url,&enum_domain)){
1747                 if (lc->vtable.display_status!=NULL)
1748                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
1749                 if (enum_lookup(enum_domain,&enumres)<0){
1750                         if (lc->vtable.display_status!=NULL)
1751                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
1752                         ms_free(enum_domain);
1753                         return NULL;
1754                 }
1755                 ms_free(enum_domain);
1756                 tmpurl=enumres->sip_address[0];
1757                 uri=linphone_address_new(tmpurl);
1758                 enum_lookup_res_free(enumres);
1759                 return uri;
1760         }
1761         /* check if we have a "sip:" */
1762         if (strstr(url,"sip:")==NULL){
1763                 /* this doesn't look like a true sip uri */
1764                 if (strchr(url,'@')!=NULL){
1765                         /* seems like sip: is missing !*/
1766                         tmpurl=ms_strdup_printf("sip:%s",url);
1767                         uri=linphone_address_new(tmpurl);
1768                         ms_free(tmpurl);
1769                         if (uri){
1770                                 return uri;
1771                         }
1772                 }
1773                 
1774                 if (proxy!=NULL){
1775                         /* append the proxy domain suffix */
1776                         const char *identity=linphone_proxy_config_get_identity(proxy);
1777                         char normalized_username[128];
1778                         uri=linphone_address_new(identity);
1779                         if (uri==NULL){
1780                                 return NULL;
1781                         }
1782                         linphone_address_set_display_name(uri,NULL);
1783                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
1784                                                                 sizeof(normalized_username));
1785                         linphone_address_set_username(uri,normalized_username);
1786                         return uri;
1787                 }else return NULL;
1788         }
1789         uri=linphone_address_new(url);
1790         if (uri!=NULL){
1791                 return uri;
1792         }
1793         /* else we could not do anything with url given by user, so display an error */
1794         if (lc->vtable.display_warning!=NULL){
1795                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
1796         }
1797         return NULL;
1798 }
1799
1800 /**
1801  * Returns the default identity SIP address.
1802  *
1803  * @ingroup proxies
1804  * This is an helper function:
1805  *
1806  * If no default proxy is set, this will return the primary contact (
1807  * see linphone_core_get_primary_contact() ). If a default proxy is set
1808  * it returns the registered identity on the proxy.
1809 **/
1810 const char * linphone_core_get_identity(LinphoneCore *lc){
1811         LinphoneProxyConfig *proxy=NULL;
1812         const char *from;
1813         linphone_core_get_default_proxy(lc,&proxy);
1814         if (proxy!=NULL) {
1815                 from=linphone_proxy_config_get_identity(proxy);
1816         }else from=linphone_core_get_primary_contact(lc);
1817         return from;
1818 }
1819
1820 const char * linphone_core_get_route(LinphoneCore *lc){
1821         LinphoneProxyConfig *proxy=NULL;
1822         const char *route=NULL;
1823         linphone_core_get_default_proxy(lc,&proxy);
1824         if (proxy!=NULL) {
1825                 route=linphone_proxy_config_get_route(proxy);
1826         }
1827         return route;
1828 }
1829
1830 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
1831         if (call->refer_pending){
1832                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
1833                 cp->referer=call;
1834                 ms_message("Starting new call to refered address %s",call->refer_to);
1835                 call->refer_pending=FALSE;
1836                 linphone_core_invite_with_params(lc,call->refer_to,cp);
1837                 linphone_call_params_destroy(cp);
1838         }
1839 }
1840
1841 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
1842         const MSList *elem;
1843         LinphoneProxyConfig *found_cfg=NULL;
1844         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
1845                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
1846                 const char *domain=linphone_proxy_config_get_domain(cfg);
1847                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
1848                         found_cfg=cfg;
1849                         break;
1850                 }
1851         }
1852         return found_cfg;
1853 }
1854
1855 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
1856         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
1857         if (cfg==NULL)
1858                 linphone_core_get_default_proxy (lc,&cfg);
1859         if (cfg!=NULL){
1860                 *route=linphone_proxy_config_get_route(cfg);
1861                 return linphone_proxy_config_get_identity (cfg);
1862         }
1863         return linphone_core_get_primary_contact (lc);
1864 }
1865
1866 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
1867         LinphoneAddress *ctt;
1868         const char *localip=call->localip;
1869
1870         /* first use user's supplied ip address if asked*/
1871         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
1872                 ctt=linphone_core_get_primary_contact_parsed(lc);
1873                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
1874                         linphone_core_get_nat_address(lc));
1875         }
1876
1877         /* if already choosed, don't change it */
1878         if (call->op && sal_op_get_contact(call->op)!=NULL){
1879                 return NULL;
1880         }
1881         /* if the ping OPTIONS request succeeded use the contact guessed from the
1882          received, rport*/
1883         if (call->ping_op){
1884                 const char *guessed=sal_op_get_contact(call->ping_op);
1885                 if (guessed){
1886                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
1887                         return ms_strdup(guessed);
1888                 }
1889         }
1890
1891         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
1892         if (dest_proxy && dest_proxy->op){
1893                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
1894                 if (fixed_contact) {
1895                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
1896                         return ms_strdup(fixed_contact);
1897                 }
1898         }
1899         
1900         ctt=linphone_core_get_primary_contact_parsed(lc);
1901         
1902         if (ctt!=NULL){
1903                 char *ret;
1904                 /*otherwise use supllied localip*/
1905                 linphone_address_set_domain(ctt,localip);
1906                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
1907                 ret=linphone_address_as_string_uri_only(ctt);
1908                 linphone_address_destroy(ctt);
1909                 ms_message("Contact has been fixed using local ip to %s",ret);
1910                 return ret;
1911         }
1912         return NULL;
1913 }
1914
1915 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
1916         int err;
1917         char *contact;
1918         char *real_url,*barmsg;
1919         char *from;
1920         
1921         /*try to be best-effort in giving real local or routable contact address */
1922         contact=get_fixed_contact(lc,call,dest_proxy);
1923         if (contact){
1924                 sal_op_set_contact(call->op, contact);
1925                 ms_free(contact);
1926         }
1927         
1928         //TODO : should probably not be done here
1929         linphone_call_init_media_streams(call);
1930         if (!lc->sip_conf.sdp_200_ack){ 
1931                 call->media_pending=TRUE;
1932                 sal_call_set_local_media_description(call->op,call->localdesc);
1933         }
1934         real_url=linphone_address_as_string(call->log->to);
1935         from=linphone_address_as_string(call->log->from);
1936         err=sal_call(call->op,from,real_url);
1937
1938         if (lc->sip_conf.sdp_200_ack){
1939                 call->media_pending=TRUE;
1940                 sal_call_set_local_media_description(call->op,call->localdesc);
1941         }
1942         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
1943         if (lc->vtable.display_status!=NULL)
1944                 lc->vtable.display_status(lc,barmsg);
1945         ms_free(barmsg);
1946         
1947         if (err<0){
1948                 if (lc->vtable.display_status!=NULL)
1949                         lc->vtable.display_status(lc,_("Could not call"));
1950                 linphone_call_stop_media_streams(call);
1951                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
1952         }else {
1953                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
1954         }
1955         ms_free(real_url);
1956         ms_free(from);
1957         return err;
1958 }
1959
1960 /**
1961  * Initiates an outgoing call
1962  *
1963  * @ingroup call_control
1964  * @param lc the LinphoneCore object
1965  * @param url the destination of the call (sip address, or phone number).
1966  *
1967  * The application doesn't own a reference to the returned LinphoneCall object.
1968  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
1969  *
1970  * @return a LinphoneCall object or NULL in case of failure
1971 **/
1972 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
1973         LinphoneCall *call;
1974         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
1975         call=linphone_core_invite_with_params(lc,url,p);
1976         linphone_call_params_destroy(p);
1977         return call;
1978 }
1979
1980
1981 /**
1982  * Initiates an outgoing call according to supplied call parameters
1983  *
1984  * @ingroup call_control
1985  * @param lc the LinphoneCore object
1986  * @param url the destination of the call (sip address, or phone number).
1987  * @param p call parameters
1988  *
1989  * The application doesn't own a reference to the returned LinphoneCall object.
1990  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
1991  *
1992  * @return a LinphoneCall object or NULL in case of failure
1993 **/
1994 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
1995         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
1996         if (addr){
1997                 LinphoneCall *call;
1998                 call=linphone_core_invite_address_with_params(lc,addr,p);
1999                 linphone_address_destroy(addr);
2000                 return call;
2001         }
2002         return NULL;
2003 }
2004
2005 /**
2006  * Initiates an outgoing call given a destination LinphoneAddress
2007  *
2008  * @ingroup call_control
2009  * @param lc the LinphoneCore object
2010  * @param addr the destination of the call (sip address).
2011  * 
2012  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2013  * created by linphone_core_interpret_url().
2014  * The application doesn't own a reference to the returned LinphoneCall object.
2015  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2016  *
2017  * @return a LinphoneCall object or NULL in case of failure
2018 **/
2019 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2020         LinphoneCall *call;
2021         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2022         call=linphone_core_invite_address_with_params (lc,addr,p);
2023         linphone_call_params_destroy(p);
2024         return call;
2025 }
2026
2027
2028 /**
2029  * Initiates an outgoing call given a destination LinphoneAddress
2030  *
2031  * @ingroup call_control
2032  * @param lc the LinphoneCore object
2033  * @param addr the destination of the call (sip address).
2034         @param params call parameters
2035  * 
2036  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2037  * created by linphone_core_interpret_url().
2038  * The application doesn't own a reference to the returned LinphoneCall object.
2039  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2040  *
2041  * @return a LinphoneCall object or NULL in case of failure
2042 **/
2043 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2044 {
2045         int err=0;
2046         const char *route=NULL;
2047         const char *from=NULL;
2048         LinphoneProxyConfig *proxy=NULL;
2049         LinphoneAddress *parsed_url2=NULL;
2050         char *real_url=NULL;
2051         LinphoneProxyConfig *dest_proxy=NULL;
2052         LinphoneCall *call;
2053         
2054         if (linphone_core_in_call(lc)){
2055                 if (lc->vtable.display_warning)
2056                         lc->vtable.display_warning(lc,_("Sorry, you have to pause or stop the current call first !"));
2057                 return NULL;
2058         }
2059         if(!linphone_core_can_we_add_call(lc)){
2060                 if (lc->vtable.display_warning)
2061                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2062                 return NULL;
2063         }
2064         linphone_core_get_default_proxy(lc,&proxy);
2065         route=linphone_core_get_route(lc);
2066         
2067         real_url=linphone_address_as_string(addr);
2068         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2069
2070         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2071                 ms_message("Overriding default proxy setting for this call:");
2072                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2073         }
2074
2075         if (dest_proxy!=NULL)
2076                 from=linphone_proxy_config_get_identity(dest_proxy);
2077         else if (proxy!=NULL)
2078                 from=linphone_proxy_config_get_identity(proxy);
2079
2080         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2081         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2082
2083         parsed_url2=linphone_address_new(from);
2084
2085         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2086         sal_op_set_route(call->op,route);
2087         
2088         if(linphone_core_add_call(lc,call)!= 0)
2089         {
2090                 ms_warning("we had a problem in adding the call into the invite ... weird");
2091                 linphone_call_unref(call);
2092                 return NULL;
2093         }
2094         /* this call becomes now the current one*/
2095         lc->current_call=call;
2096         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2097         if (dest_proxy!=NULL || lc->sip_conf.ping_with_options==FALSE){
2098                 err=linphone_core_start_invite(lc,call,dest_proxy);
2099         }else{
2100                 /*defer the start of the call after the OPTIONS ping*/
2101                 call->ping_op=sal_op_new(lc->sal);
2102                 sal_ping(call->ping_op,from,real_url);
2103                 sal_op_set_user_pointer(call->ping_op,call);
2104                 call->start_time=time(NULL);
2105         }
2106         
2107         if (real_url!=NULL) ms_free(real_url);
2108         return call;
2109 }
2110
2111 /**
2112  * Performs a simple call transfer to the specified destination.
2113  *
2114  * The remote endpoint is expected to issue a new call to the specified destination.
2115  * The current call remains active and thus can be later paused or terminated.
2116 **/
2117 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2118 {
2119         char *real_url=NULL;
2120         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2121
2122         if (!real_parsed_url){
2123                 /* bad url */
2124                 return -1;
2125         }
2126         if (call==NULL){
2127                 ms_warning("No established call to refer.");
2128                 return -1;
2129         }
2130         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2131         real_url=linphone_address_as_string (real_parsed_url);
2132         sal_call_refer(call->op,real_url);
2133         ms_free(real_url);
2134         linphone_address_destroy(real_parsed_url);
2135         return 0;
2136 }
2137
2138 /**
2139  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2140  * @param lc linphone core object
2141  * @param call a running call you want to transfer
2142  * @param dest a running call whose remote person will receive the transfer
2143  *
2144  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2145  * The destination call is a call previously established to introduce the transfered person.
2146  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2147  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2148  * close the call with us (the 'dest' call).
2149 **/
2150 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2151         return sal_call_refer_with_replaces (call->op,dest->op);
2152 }
2153
2154 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2155         LinphoneCall *call = linphone_core_get_current_call(lc);
2156         if(call != NULL)
2157         {
2158                 if(call->dir==LinphoneCallIncoming)
2159                         return TRUE;
2160         }
2161         return FALSE;
2162 }
2163
2164 /**
2165  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2166  *
2167  * In this version this is limited to the following use cases:
2168  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2169  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2170  *
2171  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be ommitted and set to NULL.
2172  *
2173  * @return 0 if successful, -1 otherwise.
2174 **/
2175 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2176         int err=0;
2177         if (params!=NULL){
2178                 if (call->localdesc)
2179                         sal_media_description_unref(call->localdesc);
2180                 call->params=*params;
2181                 call->localdesc=create_local_media_description (lc,call);
2182                 call->camera_active=params->has_video;
2183                 if (lc->vtable.display_status)
2184                         lc->vtable.display_status(lc,_("Modifying call parameters..."));
2185                 sal_call_set_local_media_description (call->op,call->localdesc);
2186                 err=sal_call_update(call->op);
2187         }else{
2188 #ifdef VIDEO_ENABLED
2189                 if (call->videostream!=NULL){
2190                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2191                         video_stream_update_video_params (call->videostream);
2192                 }
2193 #endif
2194         }
2195
2196         return err;
2197 }
2198
2199
2200 /**
2201  * Accept an incoming call.
2202  *
2203  * @ingroup call_control
2204  * Basically the application is notified of incoming calls within the
2205  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2206  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2207  * The application can later accept the call using
2208  * this method.
2209  * @param lc the LinphoneCore object
2210  * @param call the LinphoneCall object representing the call to be answered.
2211  * 
2212 **/
2213 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call)
2214 {
2215         LinphoneProxyConfig *cfg=NULL,*dest_proxy=NULL;
2216         const char *contact=NULL;
2217         SalOp *replaced;
2218         SalMediaDescription *new_md;
2219         
2220         if (call==NULL){
2221                 //if just one call is present answer the only one ...
2222                 if(linphone_core_get_calls_nb (lc) != 1)
2223                         return -1;
2224                 else
2225                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2226         }
2227
2228         if (call->state==LinphoneCallConnected){
2229                 /*call already accepted*/
2230                 return -1;
2231         }
2232         
2233         /* check if this call is supposed to replace an already running one*/
2234         replaced=sal_call_get_replaces(call->op);
2235         if (replaced){
2236                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2237                 if (rc){
2238                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2239                                    call,rc);
2240                         linphone_core_terminate_call (lc,rc);
2241                 }
2242         }
2243
2244         if (lc->current_call!=NULL && lc->current_call!=call){
2245                 ms_warning("Cannot accept this call, there is already one running.");
2246                 return -1;
2247         }
2248         
2249         /*can accept a new call only if others are on hold */
2250         {
2251                 MSList *elem;
2252                 for(elem=lc->calls;elem!=NULL;elem=elem->next){
2253                         LinphoneCall *c=(LinphoneCall*)elem->data;
2254                         if (c!=call && (c->state!=LinphoneCallPaused && c->state!=LinphoneCallPausing)){
2255                                 ms_warning("Cannot accept this call as another one is running, pause it before.");
2256                                 return -1;
2257                         }
2258                 }
2259         }
2260
2261         /*stop ringing */
2262         if (lc->ringstream!=NULL) {
2263                 ms_message("stop ringing");
2264                 ring_stop(lc->ringstream);
2265                 ms_message("ring stopped");
2266                 lc->ringstream=NULL;
2267         }
2268         
2269         linphone_core_get_default_proxy(lc,&cfg);
2270         dest_proxy=cfg;
2271         dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2272
2273         if (cfg!=dest_proxy && dest_proxy!=NULL) {
2274                 ms_message("Overriding default proxy setting for this call:");
2275                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2276         }
2277         /*try to be best-effort in giving real local or routable contact address*/
2278         contact=get_fixed_contact(lc,call,dest_proxy);
2279         if (contact)
2280                 sal_op_set_contact(call->op,contact);
2281
2282         if (call->audiostream==NULL)
2283                 linphone_call_init_media_streams(call);
2284         
2285         sal_call_accept(call->op);
2286         if (lc->vtable.display_status!=NULL)
2287                 lc->vtable.display_status(lc,_("Connected."));
2288         lc->current_call=call;
2289         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2290         new_md=sal_call_get_final_media_description(call->op);
2291         linphone_core_update_streams(lc, call, new_md);
2292         if (new_md){
2293                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2294         }else call->media_pending=TRUE;
2295         
2296         ms_message("call answered.");
2297         return 0;
2298 }
2299
2300 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2301         sal_call_terminate(call->op);
2302
2303         /*stop ringing*/
2304         if (lc->ringstream!=NULL) {
2305                 ring_stop(lc->ringstream);
2306                 lc->ringstream=NULL;
2307         }
2308         linphone_call_stop_media_streams(call);
2309         if (lc->vtable.display_status!=NULL)
2310                 lc->vtable.display_status(lc,_("Call aborted") );
2311         linphone_call_set_state(call,LinphoneCallError,error);
2312         return 0;
2313 }
2314
2315
2316 /**
2317  * Terminates a call.
2318  *
2319  * @ingroup call_control
2320  * @param lc the LinphoneCore
2321  * @param the_call the LinphoneCall object representing the call to be terminated.
2322 **/
2323 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
2324 {
2325         LinphoneCall *call;
2326         if (the_call == NULL){
2327                 call = linphone_core_get_current_call(lc);
2328                 if (ms_list_size(lc->calls)==1){
2329                         call=(LinphoneCall*)lc->calls->data;
2330                 }else{
2331                         ms_warning("No unique call to terminate !");
2332                         return -1;
2333                 }
2334         }
2335         else
2336         {
2337                 call = the_call;
2338         }
2339         sal_call_terminate(call->op);
2340         if (call->state==LinphoneCallIncomingReceived){
2341                 call->reason=LinphoneReasonDeclined;
2342         }
2343         /*stop ringing*/
2344         if (lc->ringstream!=NULL) {
2345                 ring_stop(lc->ringstream);
2346                 lc->ringstream=NULL;
2347         }
2348         linphone_call_stop_media_streams(call);
2349         if (lc->vtable.display_status!=NULL)
2350                 lc->vtable.display_status(lc,_("Call ended") );
2351         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
2352         return 0;
2353 }
2354
2355 /**
2356  * Terminates all the calls.
2357  *
2358  * @ingroup call_control
2359  * @param lc The LinphoneCore
2360 **/
2361 int linphone_core_terminate_all_calls(LinphoneCore *lc){
2362         while(lc->calls)
2363         {
2364                 LinphoneCall *the_call = lc->calls->data;
2365                 linphone_core_terminate_call(lc,the_call);
2366         }
2367         ms_list_free(lc->calls);
2368         return -1;
2369 }
2370
2371 /**
2372  * Returns the current list of calls.
2373  *
2374  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
2375  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
2376  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
2377  *
2378  * @ingroup call_control
2379 **/
2380 const MSList *linphone_core_get_calls(LinphoneCore *lc)
2381 {
2382         return lc->calls;
2383 }
2384
2385 /**
2386  * Returns TRUE if there is a call running.
2387  *
2388  * @ingroup call_control
2389 **/
2390 bool_t linphone_core_in_call(const LinphoneCore *lc){
2391         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL;
2392 }
2393
2394 /**
2395  * Returns The _LinphoneCall struct of the current call if one is in call
2396  *
2397  * @ingroup call_control
2398 **/
2399 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
2400 {
2401         return lc->current_call;
2402 }
2403
2404 /**
2405  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
2406  * this file will be played to the remote user.
2407  *
2408  * @ingroup call_control
2409 **/
2410 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *the_call)
2411 {
2412         LinphoneCall *call = the_call;
2413
2414         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
2415                 ms_warning("Cannot pause this call, it is not active.");
2416                 return -1;
2417         }
2418         
2419         if (sal_call_hold(call->op,TRUE) != 0)
2420         {
2421                 if (lc->vtable.display_warning)
2422                         lc->vtable.display_warning(lc,_("Could not pause the call"));
2423         }
2424         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
2425         if (lc->vtable.display_status)
2426                 lc->vtable.display_status(lc,_("Pausing the current call..."));
2427         lc->current_call=NULL;
2428         if (call->audiostream || call->videostream)
2429                 linphone_call_stop_media_streams (call);
2430         return 0;
2431 }
2432
2433 /**
2434  * Pause all currently running calls.
2435 **/
2436 int linphone_core_pause_all_calls(LinphoneCore *lc){
2437         const MSList *elem;
2438         for(elem=lc->calls;elem!=NULL;elem=elem->next){
2439                 LinphoneCall *call=(LinphoneCall *)elem->data;
2440                 LinphoneCallState cs=linphone_call_get_state(call);
2441                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
2442                         linphone_core_pause_call(lc,call);
2443                 }
2444         }
2445         return 0;
2446 }
2447
2448 /**
2449  * Resumes the call.
2450  *
2451  * @ingroup call_control
2452 **/
2453 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
2454 {
2455         char temp[255]={0};
2456         LinphoneCall *call = the_call;
2457         
2458         if(call->state!=LinphoneCallPaused ){
2459                 ms_warning("we cannot resume a call that has not been established and paused before");
2460                 return -1;
2461         }
2462         if(linphone_core_get_current_call(lc) != NULL){
2463                 ms_warning("There is already a call in process, pause or stop it first.");
2464                 if (lc->vtable.display_warning)
2465                         lc->vtable.display_warning(lc,_("There is already a call in process, pause or stop it first."));
2466                 return -1;
2467         }
2468         ms_message("Resuming call %p",call);
2469         if(sal_call_hold(call->op,FALSE) != 0){
2470                 return -1;
2471         }
2472         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
2473         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
2474         if (lc->vtable.display_status) 
2475                 lc->vtable.display_status(lc,temp);
2476         lc->current_call=call;
2477         return 0;
2478 }
2479
2480 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
2481         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
2482         return !linphone_address_weak_equal (addr,raddr);
2483 }
2484
2485 /**
2486  * Get the call with the remote_address specified
2487  * @param lc
2488  * @param remote_address
2489  * @return the LinphoneCall of the call if found
2490  */
2491 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
2492         LinphoneAddress *raddr=linphone_address_new(remote_address);
2493         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
2494         if (elem) return (LinphoneCall*) elem->data;
2495         return NULL;
2496 }
2497
2498 int linphone_core_send_publish(LinphoneCore *lc,
2499                                LinphoneOnlineStatus presence_mode)
2500 {
2501         const MSList *elem;
2502         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
2503                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2504                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
2505         }
2506         return 0;
2507 }
2508
2509 /**
2510  * Set the incoming call timeout in seconds.
2511  *
2512  * @ingroup call_control
2513  * If an incoming call isn't answered for this timeout period, it is 
2514  * automatically declined.
2515 **/
2516 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
2517         lc->sip_conf.inc_timeout=seconds;
2518 }
2519
2520 /**
2521  * Returns the incoming call timeout
2522  *
2523  * @ingroup call_control
2524  * See linphone_core_set_inc_timeout() for details.
2525 **/
2526 int linphone_core_get_inc_timeout(LinphoneCore *lc){
2527         return lc->sip_conf.inc_timeout;
2528 }
2529
2530 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
2531                                                                                                         const char *contact,
2532                                                                                                         LinphoneOnlineStatus presence_mode)
2533 {
2534         if (minutes_away>0) lc->minutes_away=minutes_away;
2535         
2536         if (lc->alt_contact!=NULL) {
2537                 ms_free(lc->alt_contact);
2538                 lc->alt_contact=NULL;
2539         }
2540         if (contact) lc->alt_contact=ms_strdup(contact);
2541         if (lc->presence_mode!=presence_mode){
2542                 linphone_core_notify_all_friends(lc,presence_mode);
2543                 /*
2544                    Improve the use of all LINPHONE_STATUS available.
2545                    !TODO Do not mix "presence status" with "answer status code"..
2546                    Use correct parameter to follow sip_if_match/sip_etag.
2547                  */
2548                 linphone_core_send_publish(lc,presence_mode);
2549         }
2550         lc->presence_mode=presence_mode;
2551 }
2552
2553 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
2554         return lc->presence_mode;
2555 }
2556
2557 /**
2558  * Get playback sound level in 0-100 scale.
2559  *
2560  * @ingroup media_parameters
2561 **/
2562 int linphone_core_get_play_level(LinphoneCore *lc)
2563 {
2564         return lc->sound_conf.play_lev;
2565 }
2566
2567 /**
2568  * Get ring sound level in 0-100 scale
2569  *
2570  * @ingroup media_parameters
2571 **/
2572 int linphone_core_get_ring_level(LinphoneCore *lc)
2573 {
2574         return lc->sound_conf.ring_lev;
2575 }
2576
2577 /**
2578  * Get sound capture level in 0-100 scale
2579  *
2580  * @ingroup media_parameters
2581 **/
2582 int linphone_core_get_rec_level(LinphoneCore *lc){
2583         return lc->sound_conf.rec_lev;
2584 }
2585
2586 /**
2587  * Set sound ring level in 0-100 scale
2588  *
2589  * @ingroup media_parameters
2590 **/
2591 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
2592         MSSndCard *sndcard;
2593         lc->sound_conf.ring_lev=level;
2594         sndcard=lc->sound_conf.ring_sndcard;
2595         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
2596 }
2597
2598 /**
2599  * Allow to control play level before entering sound card:  gain in db
2600  *
2601  * @ingroup media_parameters
2602 **/
2603 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
2604         float gain=gaindb;
2605         LinphoneCall *call=linphone_core_get_current_call (lc);
2606         AudioStream *st;
2607
2608         lc->sound_conf.soft_play_lev=gaindb;
2609
2610         if (call==NULL || (st=call->audiostream)==NULL){
2611                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
2612                 return;
2613         }
2614         if (st->volrecv){
2615                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
2616         }else ms_warning("Could not apply gain: gain control wasn't activated.");
2617 }
2618
2619 /**
2620  * Get playback gain in db before entering  sound card.
2621  *
2622  * @ingroup media_parameters
2623 **/
2624 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
2625         return lc->sound_conf.soft_play_lev;
2626 }
2627
2628 /**
2629  * Set sound playback level in 0-100 scale
2630  *
2631  * @ingroup media_parameters
2632 **/
2633 void linphone_core_set_play_level(LinphoneCore *lc, int level){
2634         MSSndCard *sndcard;
2635         lc->sound_conf.play_lev=level;
2636         sndcard=lc->sound_conf.play_sndcard;
2637         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
2638 }
2639
2640 /**
2641  * Set sound capture level in 0-100 scale
2642  *
2643  * @ingroup media_parameters
2644 **/
2645 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
2646 {
2647         MSSndCard *sndcard;
2648         lc->sound_conf.rec_lev=level;
2649         sndcard=lc->sound_conf.capt_sndcard;
2650         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
2651 }
2652
2653 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
2654         MSSndCard *sndcard=NULL;
2655         if (devid!=NULL){
2656                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
2657                 if (sndcard!=NULL &&
2658                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
2659                         ms_warning("%s card does not have the %s capability, ignoring.",
2660                                 devid,
2661                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
2662                         sndcard=NULL;
2663                 }
2664         }
2665         if (sndcard==NULL) {
2666                 /* get a card that has read+write capabilities */
2667                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
2668                 /* otherwise refine to the first card having the right capability*/
2669                 if (sndcard==NULL){
2670                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
2671                         for(;elem!=NULL;elem=elem->next){
2672                                 sndcard=(MSSndCard*)elem->data;
2673                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
2674                         }
2675                 }
2676                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
2677                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
2678                         if (elem) sndcard=(MSSndCard*)elem->data;
2679         }
2680         }
2681         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
2682         return sndcard;
2683 }
2684
2685 /**
2686  * Returns true if the specified sound device can capture sound.
2687  *
2688  * @ingroup media_parameters
2689  * @param devid the device name as returned by linphone_core_get_sound_devices()
2690 **/
2691 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
2692         MSSndCard *sndcard;
2693         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
2694         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
2695         return FALSE;
2696 }
2697
2698 /**
2699  * Returns true if the specified sound device can play sound.
2700  *
2701  * @ingroup media_parameters
2702  * @param devid the device name as returned by linphone_core_get_sound_devices()
2703 **/
2704 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
2705         MSSndCard *sndcard;
2706         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
2707         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
2708         return FALSE;
2709 }
2710
2711 /**
2712  * Sets the sound device used for ringing.
2713  *
2714  * @ingroup media_parameters
2715  * @param devid the device name as returned by linphone_core_get_sound_devices()
2716 **/
2717 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
2718         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
2719         lc->sound_conf.ring_sndcard=card;
2720         if (card && linphone_core_ready(lc))
2721                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
2722         return 0;
2723 }
2724
2725 /**
2726  * Sets the sound device used for playback.
2727  *
2728  * @ingroup media_parameters
2729  * @param devid the device name as returned by linphone_core_get_sound_devices()
2730 **/
2731 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
2732         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
2733         lc->sound_conf.play_sndcard=card;
2734         if (card &&  linphone_core_ready(lc))
2735                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
2736         return 0;
2737 }
2738
2739 /**
2740  * Sets the sound device used for capture.
2741  *
2742  * @ingroup media_parameters
2743  * @param devid the device name as returned by linphone_core_get_sound_devices()
2744 **/
2745 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
2746         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
2747         lc->sound_conf.capt_sndcard=card;
2748         if (card &&  linphone_core_ready(lc))
2749                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
2750         return 0;
2751 }
2752
2753 /**
2754  * Returns the name of the currently assigned sound device for ringing.
2755  *
2756  * @ingroup media_parameters
2757 **/
2758 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
2759 {
2760         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
2761         return NULL;
2762 }
2763
2764 /**
2765  * Returns the name of the currently assigned sound device for playback.
2766  *
2767  * @ingroup media_parameters
2768 **/
2769 const char * linphone_core_get_playback_device(LinphoneCore *lc)
2770 {
2771         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
2772 }
2773
2774 /**
2775  * Returns the name of the currently assigned sound device for capture.
2776  *
2777  * @ingroup media_parameters
2778 **/
2779 const char * linphone_core_get_capture_device(LinphoneCore *lc)
2780 {
2781         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
2782 }
2783
2784 /**
2785  * Returns an unmodifiable array of available sound devices.
2786  *
2787  * @ingroup media_parameters
2788  * The array is NULL terminated.
2789 **/
2790 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
2791         build_sound_devices_table(lc);
2792         return lc->sound_conf.cards;
2793 }
2794
2795 /**
2796  * Returns an unmodifiable array of available video capture devices.
2797  *
2798  * @ingroup media_parameters
2799  * The array is NULL terminated.
2800 **/
2801 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
2802         return lc->video_conf.cams;
2803 }
2804
2805 char linphone_core_get_sound_source(LinphoneCore *lc)
2806 {
2807         return lc->sound_conf.source;
2808 }
2809
2810 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
2811 {
2812         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
2813         lc->sound_conf.source=source;
2814         if (!sndcard) return;
2815         switch(source){
2816                 case 'm':
2817                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
2818                         break;
2819                 case 'l':
2820                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
2821                         break;
2822         }
2823
2824 }
2825
2826
2827 /**
2828  * Sets the path to a wav file used for ringing.
2829  *
2830  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
2831  *
2832  * @ingroup media_parameters
2833 **/
2834 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
2835         if (lc->sound_conf.local_ring!=0){
2836                 ms_free(lc->sound_conf.local_ring);
2837         }
2838         lc->sound_conf.local_ring=ms_strdup(path);
2839         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
2840                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
2841 }
2842
2843 /**
2844  * Returns the path to the wav file used for ringing.
2845  *
2846  * @ingroup media_parameters
2847 **/
2848 const char *linphone_core_get_ring(const LinphoneCore *lc){
2849         return lc->sound_conf.local_ring;
2850 }
2851
2852 static void notify_end_of_ring(void *ud ,unsigned int event, void * arg){
2853         LinphoneCore *lc=(LinphoneCore*)ud;
2854         lc->preview_finished=1;
2855 }
2856
2857 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
2858 {
2859         if (lc->ringstream!=0){
2860                 ms_warning("Cannot start ring now,there's already a ring being played");
2861                 return -1;
2862         }
2863         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
2864         lc->preview_finished=0;
2865         if (lc->sound_conf.ring_sndcard!=NULL){
2866                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2867                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
2868         }
2869         return 0;
2870 }
2871
2872 /**
2873  * Sets the path to a wav file used for ringing back.
2874  *
2875  * Ringback means the ring that is heard when it's ringing at the remote party.
2876  * The file must be a wav 16bit linear.
2877  *
2878  * @ingroup media_parameters
2879 **/
2880 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
2881         if (lc->sound_conf.remote_ring!=0){
2882                 ms_free(lc->sound_conf.remote_ring);
2883         }
2884         lc->sound_conf.remote_ring=ms_strdup(path);
2885 }
2886
2887 /**
2888  * Returns the path to the wav file used for ringing back.
2889  *
2890  * @ingroup media_parameters
2891 **/
2892 const char * linphone_core_get_ringback(const LinphoneCore *lc){
2893         return lc->sound_conf.remote_ring;
2894 }
2895
2896 /**
2897  * Enables or disable echo cancellation.
2898  *
2899  * @ingroup media_parameters
2900 **/
2901 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
2902         lc->sound_conf.ec=val;
2903         if ( linphone_core_ready(lc))
2904                 lp_config_set_int(lc->config,"sound","echocancellation",val);
2905 }
2906
2907 /**
2908  * Returns TRUE if echo cancellation is enabled.
2909  *
2910  * @ingroup media_parameters
2911 **/
2912 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
2913         return lc->sound_conf.ec;
2914 }
2915
2916 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
2917         lc->sound_conf.ea=val;
2918 }
2919
2920 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
2921         return lc->sound_conf.ea;
2922 }
2923
2924 /**
2925  * Mutes or unmutes the local microphone.
2926  *
2927  * @ingroup media_parameters
2928 **/
2929 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
2930         LinphoneCall *call=linphone_core_get_current_call(lc);
2931         if (call==NULL){
2932                 ms_warning("linphone_core_mute_mic(): No current call !");
2933                 return;
2934         }
2935         if (call->audiostream!=NULL){
2936                 audio_stream_set_mic_gain(call->audiostream,
2937                         (val==TRUE) ? 0 : lp_config_get_float(lc->config,"sound","mic_gain",1)); 
2938                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
2939                         audio_stream_mute_rtp(call->audiostream,val);
2940                 }
2941                 call->audio_muted=val;
2942         }
2943 }
2944
2945 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
2946         LinphoneCall *call=linphone_core_get_current_call(lc);
2947         if (call==NULL){
2948                 ms_warning("linphone_core_is_mic_muted(): No current call !");
2949                 return FALSE;
2950         }
2951         return call->audio_muted;
2952 }
2953
2954 // returns rtp transmission status for an active stream
2955 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute 
2956 // was set on then rtp transmission is also muted
2957 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
2958         LinphoneCall *call=linphone_core_get_current_call(lc);
2959         if (call==NULL){
2960                 ms_warning("linphone_core_is_mic_muted(): No current call !");
2961                 return FALSE;
2962         }
2963         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
2964                 return call->audio_muted;
2965         }
2966         return FALSE;
2967 }
2968
2969 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
2970         lc->sound_conf.agc=val;
2971 }
2972
2973 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
2974         return lc->sound_conf.agc;
2975 }
2976
2977 /**
2978  * Send the specified dtmf.
2979  *
2980  * @ingroup media_parameters
2981  * This function only works during calls. The dtmf is automatically played to the user.
2982  * @param lc The LinphoneCore object
2983  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
2984  *
2985 **/
2986 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
2987 {
2988         LinphoneCall *call=linphone_core_get_current_call(lc);
2989         if (call==NULL){
2990                 ms_warning("linphone_core_send_dtmf(): no active call");
2991                 return;
2992         }
2993         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
2994         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
2995         {
2996                 /* In Band DTMF */
2997                 if (call->audiostream!=NULL){
2998                         audio_stream_send_dtmf(call->audiostream,dtmf);
2999                 }
3000                 else
3001                 {
3002                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3003                 }
3004         }
3005         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3006                 /* Out of Band DTMF (use INFO method) */
3007                 sal_call_send_dtmf(call->op,dtmf);
3008         }
3009 }
3010
3011 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3012         if (lc->net_conf.stun_server!=NULL)
3013                 ms_free(lc->net_conf.stun_server);
3014         if (server)
3015                 lc->net_conf.stun_server=ms_strdup(server);
3016         else lc->net_conf.stun_server=NULL;
3017 }
3018
3019 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3020         return lc->net_conf.stun_server;
3021 }
3022
3023 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3024         return lc->net_conf.relay;
3025 }
3026
3027 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3028         if (lc->net_conf.relay!=NULL){
3029                 ms_free(lc->net_conf.relay);
3030                 lc->net_conf.relay=NULL;
3031         }
3032         if (addr){
3033                 lc->net_conf.relay=ms_strdup(addr);
3034         }
3035         return 0;
3036 }
3037
3038 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3039 {
3040         if (lc->net_conf.nat_address!=NULL){
3041                 ms_free(lc->net_conf.nat_address);
3042         }
3043         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3044         else lc->net_conf.nat_address=NULL;
3045         if (lc->sip_conf.contact) update_primary_contact(lc);
3046 }
3047
3048 const char *linphone_core_get_nat_address(const LinphoneCore *lc)
3049 {
3050         return lc->net_conf.nat_address;
3051 }
3052
3053 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
3054         lc->net_conf.firewall_policy=pol;
3055         if (lc->sip_conf.contact) update_primary_contact(lc);
3056 }
3057
3058 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
3059         return lc->net_conf.firewall_policy;
3060 }
3061
3062 /**
3063  * Get the list of call logs (past calls).
3064  *
3065  * @ingroup call_logs
3066 **/
3067 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
3068         lc->missed_calls=0;
3069         return lc->call_logs;
3070 }
3071
3072 /**
3073  * Erase the call log.
3074  *
3075  * @ingroup call_logs
3076 **/
3077 void linphone_core_clear_call_logs(LinphoneCore *lc){
3078         lc->missed_calls=0;
3079         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
3080         lc->call_logs=ms_list_free(lc->call_logs);
3081         call_logs_write_to_config_file(lc);
3082 }
3083
3084 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
3085 #ifdef VIDEO_ENABLED
3086         if (val){
3087                 if (lc->previewstream==NULL){
3088                         lc->previewstream=video_preview_new();
3089                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
3090                         if (lc->video_conf.displaytype)
3091                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
3092                         if (lc->preview_window_id!=0)
3093                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
3094                         video_preview_start(lc->previewstream,lc->video_conf.device);
3095                 }
3096         }else{
3097                 if (lc->previewstream!=NULL){
3098                         video_preview_stop(lc->previewstream);
3099                         lc->previewstream=NULL;
3100                 }
3101         }
3102 #endif
3103 }
3104
3105 /**
3106  * Enables video globally.
3107  *
3108  * @ingroup media_parameters
3109  * This function does not have any effect during calls. It just indicates LinphoneCore to
3110  * initiate future calls with video or not. The two boolean parameters indicate in which
3111  * direction video is enabled. Setting both to false disables video entirely.
3112  *
3113  * @param vcap_enabled indicates whether video capture is enabled
3114  * @param display_enabled indicates whether video display should be shown
3115  *
3116 **/
3117 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
3118 #ifndef VIDEO_ENABLED
3119         if (vcap_enabled || display_enabled)
3120                 ms_warning("This version of linphone was built without video support.");
3121 #endif
3122         lc->video_conf.capture=vcap_enabled;
3123         lc->video_conf.display=display_enabled;
3124
3125         /* need to re-apply network bandwidth settings*/
3126         linphone_core_set_download_bandwidth(lc,
3127                 linphone_core_get_download_bandwidth(lc));
3128         linphone_core_set_upload_bandwidth(lc,
3129                 linphone_core_get_upload_bandwidth(lc));
3130 }
3131
3132 /**
3133  * Returns TRUE if video is enabled, FALSE otherwise.
3134  * @ingroup media_parameters
3135 **/
3136 bool_t linphone_core_video_enabled(LinphoneCore *lc){
3137         return (lc->video_conf.display || lc->video_conf.capture);
3138 }
3139
3140 /**
3141  * Controls video preview enablement.
3142  *
3143  * @ingroup media_parameters
3144  * Video preview refers to the action of displaying the local webcam image
3145  * to the user while not in call.
3146 **/
3147 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
3148         lc->video_conf.show_local=val;
3149 }
3150
3151 /**
3152  * Returns TRUE if video previewing is enabled.
3153  * @ingroup media_parameters
3154 **/
3155 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
3156         return lc->video_conf.show_local;
3157 }
3158
3159 /**
3160  * Enables or disable self view during calls.
3161  *
3162  * @ingroup media_parameters
3163  * Self-view refers to having local webcam image inserted in corner
3164  * of the video window during calls.
3165  * This function works at any time, including during calls.
3166 **/
3167 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
3168 #ifdef VIDEO_ENABLED
3169         LinphoneCall *call=linphone_core_get_current_call (lc);
3170         lc->video_conf.selfview=val;
3171         if (call && call->videostream){
3172                 video_stream_enable_self_view(call->videostream,val);
3173         }
3174 #endif
3175 }
3176
3177 /**
3178  * Returns TRUE if self-view is enabled, FALSE otherwise.
3179  *
3180  * @ingroup media_parameters
3181  *
3182  * Refer to linphone_core_enable_self_view() for details.
3183 **/
3184 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
3185         return lc->video_conf.selfview;
3186 }
3187
3188 /**
3189  * Sets the active video device.
3190  *
3191  * @ingroup media_parameters
3192  * @param id the name of the video device as returned by linphone_core_get_video_devices()
3193 **/
3194 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
3195         MSWebCam *olddev=lc->video_conf.device;
3196         const char *vd;
3197         if (id!=NULL){
3198                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
3199                 if (lc->video_conf.device==NULL){
3200                         ms_warning("Could not found video device %s",id);
3201                 }
3202         }
3203         if (lc->video_conf.device==NULL)
3204                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
3205         if (olddev!=NULL && olddev!=lc->video_conf.device){
3206                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
3207         }
3208         if ( linphone_core_ready(lc) && lc->video_conf.device){
3209                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
3210                 if (vd && strstr(vd,"Static picture")!=NULL){
3211                         vd=NULL;
3212                 }
3213                 lp_config_set_string(lc->config,"video","device",vd);
3214         }
3215         return 0;
3216 }
3217
3218 /**
3219  * Returns the name of the currently active video device.
3220  *
3221  * @ingroup media_parameters
3222 **/
3223 const char *linphone_core_get_video_device(const LinphoneCore *lc){
3224         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
3225         return NULL;
3226 }
3227
3228 #ifdef VIDEO_ENABLED
3229 static VideoStream * get_active_video_stream(LinphoneCore *lc){
3230         VideoStream *vs = NULL;
3231         LinphoneCall *call=linphone_core_get_current_call (lc);
3232         /* Select the video stream from the call in the first place */
3233         if (call && call->videostream) {
3234                 vs = call->videostream;
3235         }
3236         /* If not in call, select the video stream from the preview */
3237         if (vs == NULL && lc->previewstream) {
3238                 vs = lc->previewstream;
3239         }
3240         return vs;
3241 }
3242 #endif
3243
3244 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
3245 #ifdef VIDEO_ENABLED
3246         VideoStream *vs=get_active_video_stream(lc);
3247         /* If we have a video stream (either preview, either from call), we
3248                  have a source and it is using the static picture filter, then
3249                  force the filter to use that picture. */
3250         if (vs && vs->source) {
3251                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
3252                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
3253                                                                                                                 (void *)path);
3254                 }
3255         }
3256         /* Tell the static image filter to use that image from now on so
3257                  that the image will be used next time it has to be read */
3258         ms_static_image_set_default_image(path);
3259 #else
3260         ms_warning("Video support not compiled.");
3261 #endif
3262         return 0;
3263 }
3264
3265 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
3266 #ifdef VIDEO_ENABLED
3267         VideoStream *vs = NULL;
3268
3269         vs=get_active_video_stream(lc);
3270         
3271         /* If we have a video stream (either preview, either from call), we
3272                  have a source and it is using the static picture filter, then
3273                  force the filter to use that picture. */
3274         if (vs && vs->source) {
3275                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
3276                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
3277                 }
3278         }
3279 #else
3280         ms_warning("Video support not compiled.");
3281 #endif
3282         return 0;
3283 }
3284
3285 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
3286 #ifdef VIDEO_ENABLED
3287         VideoStream *vs = NULL;
3288         vs=get_active_video_stream(lc);
3289         /* If we have a video stream (either preview, either from call), we
3290                  have a source and it is using the static picture filter, then
3291                  force the filter to use that picture. */
3292         if (vs && vs->source) {
3293                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
3294                   
3295                         float fps;
3296                   
3297                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
3298                         return fps;
3299                 }
3300         }
3301 #else
3302         ms_warning("Video support not compiled.");
3303 #endif
3304         return 0;
3305 }
3306
3307 /**
3308  * Returns the native window handle of the video window, casted as an unsigned long.
3309  *
3310  * @ingroup media_parameters
3311 **/
3312 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
3313 #ifdef VIDEO_ENABLED
3314         LinphoneCall *call=linphone_core_get_current_call (lc);
3315         if (call && call->videostream)
3316                 return video_stream_get_native_window_id(call->videostream);
3317         if (lc->previewstream)
3318                 return video_stream_get_native_window_id(lc->previewstream);
3319 #endif
3320         return lc->video_window_id;
3321 }
3322
3323 /**
3324  * Set the native video window id where the video is to be displayed.
3325  * If not set the core will create its own window.
3326 **/
3327 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
3328 #ifdef VIDEO_ENABLED
3329         LinphoneCall *call=linphone_core_get_current_call(lc);
3330         lc->video_window_id=id;
3331         if (call!=NULL && call->videostream){
3332                 video_stream_set_native_window_id(call->videostream,id);
3333         }
3334 #endif
3335 }
3336
3337 /**
3338  * Returns the native window handle of the video preview window, casted as an unsigned long.
3339  *
3340  * @ingroup media_parameters
3341 **/
3342 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
3343 #ifdef VIDEO_ENABLED
3344         LinphoneCall *call=linphone_core_get_current_call (lc);
3345         if (call && call->videostream)
3346                 return video_stream_get_native_preview_window_id(call->videostream);
3347         if (lc->previewstream)
3348                 return video_preview_get_native_window_id(lc->previewstream);
3349 #endif
3350         return lc->preview_window_id;
3351 }
3352
3353 /**
3354  * Set the native window id where the preview video (local camera) is to be displayed.
3355  * This has to be used in conjonction with linphone_core_use_preview_window().
3356  * If not set the core will create its own window.
3357 **/
3358 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
3359         lc->preview_window_id=id;
3360 }
3361
3362 /**
3363  * Tells the core to use a separate window for local camera preview video, instead of
3364  * inserting local view within the remote video window.
3365  *
3366 **/
3367 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
3368         lc->use_preview_window=yesno;
3369 }
3370
3371 static MSVideoSizeDef supported_resolutions[]={
3372         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
3373         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
3374         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
3375         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
3376         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
3377         {       {MS_VIDEO_SIZE_QVGA_H,MS_VIDEO_SIZE_QVGA_W}     ,       "qvga-portrait" },
3378         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
3379         {       {MS_VIDEO_SIZE_QCIF_H,MS_VIDEO_SIZE_QCIF_W}     ,       "qcif-portrait" },
3380         {       {0,0}                   ,       NULL    }
3381 };
3382
3383 /**
3384  * Returns the zero terminated table of supported video resolutions.
3385  *
3386  * @ingroup media_parameters
3387 **/
3388 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
3389         return supported_resolutions;
3390 }
3391
3392 static MSVideoSize video_size_get_by_name(const char *name){
3393         MSVideoSizeDef *pdef=supported_resolutions;
3394         MSVideoSize null_vsize={0,0};
3395         for(;pdef->name!=NULL;pdef++){
3396                 if (strcasecmp(name,pdef->name)==0){
3397                         return pdef->vsize;
3398                 }
3399         }
3400         ms_warning("Video resolution %s is not supported in linphone.",name);
3401         return null_vsize;
3402 }
3403
3404 static const char *video_size_get_name(MSVideoSize vsize){
3405         MSVideoSizeDef *pdef=supported_resolutions;
3406         for(;pdef->name!=NULL;pdef++){
3407                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
3408                         return pdef->name;
3409                 }
3410         }
3411         return NULL;
3412 }
3413
3414 static bool_t video_size_supported(MSVideoSize vsize){
3415         if (video_size_get_name(vsize)) return TRUE;
3416         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
3417         return FALSE;
3418 }
3419
3420 /**
3421  * Sets the preferred video size.
3422  *
3423  * @ingroup media_parameters
3424  * This applies only to the stream that is captured and sent to the remote party,
3425  * since we accept all standard video size on the receive path.
3426 **/
3427 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
3428         if (video_size_supported(vsize)){
3429                 MSVideoSize oldvsize=lc->video_conf.vsize;
3430                 lc->video_conf.vsize=vsize;
3431                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
3432                         toggle_video_preview(lc,FALSE);
3433                         toggle_video_preview(lc,TRUE);
3434                 }
3435                 if ( linphone_core_ready(lc))
3436                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
3437         }
3438 }
3439
3440 /**
3441  * Sets the preferred video size by its name.
3442  *
3443  * @ingroup media_parameters
3444  * This is identical to linphone_core_set_preferred_video_size() except
3445  * that it takes the name of the video resolution as input.
3446  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
3447 **/
3448 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
3449         MSVideoSize vsize=video_size_get_by_name(name);
3450         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
3451         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
3452         else linphone_core_set_preferred_video_size(lc,default_vsize);
3453 }
3454
3455 /**
3456  * Returns the current preferred video size for sending.
3457  *
3458  * @ingroup media_parameters
3459 **/
3460 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
3461         return lc->video_conf.vsize;
3462 }
3463
3464 /**
3465  * Ask the core to stream audio from and to files, instead of using the soundcard.
3466 **/
3467 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
3468         lc->use_files=yesno;
3469 }
3470
3471 /**
3472  * Sets a wav file to be played when putting somebody on hold,
3473  * or when files are used instead of soundcards (see linphone_core_use_files()).
3474  * 
3475  * The file must be a 16 bit linear wav file.
3476 **/
3477 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
3478         LinphoneCall *call=linphone_core_get_current_call(lc);
3479         if (lc->play_file!=NULL){
3480                 ms_free(lc->play_file);
3481                 lc->play_file=NULL;
3482         }
3483         if (file!=NULL) {
3484                 lc->play_file=ms_strdup(file);
3485                 if (call && call->audiostream && call->audiostream->ticker)
3486                         audio_stream_play(call->audiostream,file);
3487         }
3488 }
3489
3490
3491 /**
3492  * Sets a wav file where incoming stream is to be recorded,
3493  * when files are used instead of soundcards (see linphone_core_use_files()).
3494  * 
3495  * The file must be a 16 bit linear wav file.
3496 **/
3497 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
3498         LinphoneCall *call=linphone_core_get_current_call(lc);
3499         if (lc->rec_file!=NULL){
3500                 ms_free(lc->rec_file);
3501                 lc->rec_file=NULL;
3502         }
3503         if (file!=NULL) {
3504                 lc->rec_file=ms_strdup(file);
3505                 if (call && call->audiostream)
3506                         audio_stream_record(call->audiostream,file);
3507         }
3508 }
3509
3510
3511 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
3512         LinphoneCall *call=linphone_core_get_current_call (lc);
3513         if (call){
3514                 AudioStream *stream=call->audiostream;
3515                 if (stream){
3516                         return stream->dtmfgen;
3517                 }
3518         }
3519         if (lc->ringstream==NULL){
3520                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3521                 lc->ringstream=ring_start(NULL,0,ringcard);
3522                 lc->dmfs_playing_start_time=time(NULL);
3523         }else{
3524                 if (lc->dmfs_playing_start_time!=0)
3525                         lc->dmfs_playing_start_time=time(NULL);
3526         }
3527         return lc->ringstream->gendtmf;
3528 }
3529
3530 /**
3531  * Plays a dtmf to the local user.
3532 **/
3533 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
3534         MSFilter *f=get_dtmf_gen(lc);
3535         if (f==NULL){
3536                 ms_error("No dtmf generator at this time !");
3537                 return;
3538         }
3539         if (duration_ms>0)
3540                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
3541         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
3542 }
3543
3544 /**
3545  * Stops playing a dtmf started by linphone_core_play_dtmf().
3546 **/
3547 void linphone_core_stop_dtmf(LinphoneCore *lc){
3548         MSFilter *f=get_dtmf_gen(lc);
3549         if (f!=NULL)
3550                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
3551 }
3552
3553
3554
3555 /**
3556  * Retrieves the user pointer that was given to linphone_core_new()
3557  *
3558  * @ingroup initializing
3559 **/
3560 void *linphone_core_get_user_data(LinphoneCore *lc){
3561         return lc->data;
3562 }
3563
3564 int linphone_core_get_mtu(const LinphoneCore *lc){
3565         return lc->net_conf.mtu;
3566 }
3567
3568 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
3569         lc->net_conf.mtu=mtu;
3570         if (mtu>0){
3571                 if (mtu<500){
3572                         ms_error("MTU too small !");
3573                         mtu=500;
3574                 }
3575                 ms_set_mtu(mtu);
3576                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
3577         }else ms_set_mtu(0);//use mediastreamer2 default value
3578 }
3579
3580 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
3581         lc->wait_cb=cb;
3582         lc->wait_ctx=user_context;
3583 }
3584
3585 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
3586         if (lc->wait_cb){
3587                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
3588         }
3589 }
3590
3591 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
3592         if (lc->wait_cb){
3593                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
3594         }else{
3595 #ifdef WIN32
3596                 Sleep(50000);
3597 #else
3598                 usleep(50000);
3599 #endif
3600         }
3601 }
3602
3603 void linphone_core_stop_waiting(LinphoneCore *lc){
3604         if (lc->wait_cb){
3605                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
3606         }
3607 }
3608
3609 void linphone_core_set_audio_transports(LinphoneCore *lc, RtpTransport *rtp, RtpTransport *rtcp){
3610         lc->a_rtp=rtp;
3611         lc->a_rtcp=rtcp;
3612 }
3613
3614 /**
3615  * Retrieve RTP statistics regarding current call.
3616  * @param local RTP statistics computed locally.
3617  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
3618  *
3619  * @note Remote RTP statistics is not implemented yet.
3620  *
3621  * @returns 0 or -1 if no call is running.
3622 **/
3623  
3624 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
3625         LinphoneCall *call=linphone_core_get_current_call (lc);
3626         if (call!=NULL){
3627                 if (call->audiostream!=NULL){
3628                         memset(remote,0,sizeof(*remote));
3629                         audio_stream_get_local_rtp_stats (call->audiostream,local);
3630                         return 0;
3631                 }
3632         }
3633         return -1;
3634 }
3635
3636 void net_config_uninit(LinphoneCore *lc)
3637 {
3638         net_config_t *config=&lc->net_conf;
3639         lp_config_set_int(lc->config,"net","download_bw",config->download_bw);
3640         lp_config_set_int(lc->config,"net","upload_bw",config->upload_bw);
3641
3642         if (config->stun_server!=NULL){
3643                 lp_config_set_string(lc->config,"net","stun_server",config->stun_server);
3644                 ms_free(lc->net_conf.stun_server);
3645         }
3646         if (config->nat_address!=NULL){
3647                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
3648                 ms_free(lc->net_conf.nat_address);
3649         }
3650         lp_config_set_int(lc->config,"net","firewall_policy",config->firewall_policy);
3651         lp_config_set_int(lc->config,"net","mtu",config->mtu);  
3652 }
3653
3654
3655 void sip_config_uninit(LinphoneCore *lc)
3656 {
3657         MSList *elem;
3658         int i;
3659         sip_config_t *config=&lc->sip_conf;
3660         lp_config_set_int(lc->config,"sip","sip_port",config->transports.udp_port);
3661         lp_config_set_int(lc->config,"sip","sip_tcp_port",config->transports.tcp_port);
3662         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
3663         lp_config_set_string(lc->config,"sip","contact",config->contact);
3664         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
3665         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
3666         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
3667         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
3668         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
3669
3670
3671         lp_config_set_int(lc->config,"sip","default_proxy",linphone_core_get_default_proxy(lc,NULL));
3672         
3673         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
3674                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
3675                 linphone_proxy_config_write_to_config_file(lc->config,cfg,i);
3676                 linphone_proxy_config_edit(cfg);        /* to unregister */
3677         }
3678         /*to ensure remove configs are erased:*/
3679         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);
3680
3681         for (i=0;i<20;i++){
3682                 linphone_core_iterate(lc);
3683 #ifndef WIN32
3684                 usleep(100000);
3685 #else
3686                 Sleep(100);
3687 #endif
3688         }
3689
3690         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
3691         ms_list_free(config->proxies);
3692         config->proxies=NULL;
3693         
3694         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
3695
3696         for(elem=lc->auth_info,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
3697                 LinphoneAuthInfo *ai=(LinphoneAuthInfo*)(elem->data);
3698                 linphone_auth_info_write_config(lc->config,ai,i);
3699         }
3700         linphone_auth_info_write_config(lc->config,NULL,i); /* mark the end */
3701         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
3702         ms_list_free(lc->auth_info);
3703         lc->auth_info=NULL;
3704         
3705         sal_uninit(lc->sal);
3706         lc->sal=NULL;
3707
3708         if (lc->sip_conf.guessed_contact)
3709                 ms_free(lc->sip_conf.guessed_contact);
3710         if (config->contact)
3711                 ms_free(config->contact);
3712         
3713 }
3714
3715 void rtp_config_uninit(LinphoneCore *lc)
3716 {
3717         rtp_config_t *config=&lc->rtp_conf;
3718         lp_config_set_int(lc->config,"rtp","audio_rtp_port",config->audio_rtp_port);
3719         lp_config_set_int(lc->config,"rtp","video_rtp_port",config->video_rtp_port);
3720         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
3721         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
3722         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
3723 }
3724
3725 void sound_config_uninit(LinphoneCore *lc)
3726 {
3727         sound_config_t *config=&lc->sound_conf;
3728         ms_free(config->cards);
3729
3730         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
3731
3732         if (config->local_ring) ms_free(config->local_ring);
3733         if (config->remote_ring) ms_free(config->remote_ring);
3734         ms_snd_card_manager_destroy();
3735 }
3736
3737 void video_config_uninit(LinphoneCore *lc)
3738 {
3739         lp_config_set_int(lc->config,"video","enabled",linphone_core_video_enabled(lc));
3740         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
3741         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
3742         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
3743         lp_config_set_int(lc->config,"video","show_local",linphone_core_video_preview_enabled(lc));
3744         lp_config_set_int(lc->config,"video","self_view",linphone_core_self_view_enabled(lc));
3745         if (lc->video_conf.cams)
3746                 ms_free(lc->video_conf.cams);
3747 }
3748
3749 void codecs_config_uninit(LinphoneCore *lc)
3750 {
3751         PayloadType *pt;
3752         codecs_config_t *config=&lc->codecs_conf;
3753         MSList *node;
3754         char key[50];
3755         int index;
3756         index=0;
3757         for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
3758                 pt=(PayloadType*)(node->data);
3759                 sprintf(key,"audio_codec_%i",index);
3760                 lp_config_set_string(lc->config,key,"mime",pt->mime_type);
3761                 lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
3762                 lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
3763                 index++;
3764         }
3765         sprintf(key,"audio_codec_%i",index);
3766         lp_config_clean_section (lc->config,key);
3767         
3768         index=0;
3769         for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
3770                 pt=(PayloadType*)(node->data);
3771                 sprintf(key,"video_codec_%i",index);
3772                 lp_config_set_string(lc->config,key,"mime",pt->mime_type);
3773                 lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
3774                 lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
3775                 lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
3776                 index++;
3777         }
3778         sprintf(key,"video_codec_%i",index);
3779         lp_config_clean_section (lc->config,key);
3780         
3781         ms_list_free(lc->codecs_conf.audio_codecs);
3782         ms_list_free(lc->codecs_conf.video_codecs);
3783 }
3784
3785 void ui_config_uninit(LinphoneCore* lc)
3786 {
3787         if (lc->friends){
3788                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
3789                 ms_list_free(lc->friends);
3790                 lc->friends=NULL;
3791         }
3792 }
3793
3794 /**
3795  * Returns the LpConfig object used to manage the storage (config) file.
3796  *
3797  * @ingroup misc
3798  * The application can use the LpConfig object to insert its own private 
3799  * sections and pairs of key=value in the configuration file.
3800  * 
3801 **/
3802 LpConfig *linphone_core_get_config(LinphoneCore *lc){
3803         return lc->config;
3804 }
3805
3806 static void linphone_core_uninit(LinphoneCore *lc)
3807 {
3808         while(lc->calls)
3809         {
3810                 LinphoneCall *the_call = lc->calls->data;
3811                 linphone_core_terminate_call(lc,the_call);
3812                 linphone_core_iterate(lc);
3813 #ifdef WIN32
3814                 Sleep(50000);
3815 #else
3816                 usleep(50000);
3817 #endif
3818         }
3819
3820         if (lc->friends)
3821                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
3822         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
3823 #ifdef VIDEO_ENABLED
3824         if (lc->previewstream!=NULL){
3825                 video_preview_stop(lc->previewstream);
3826                 lc->previewstream=NULL;
3827         }
3828 #endif
3829         ms_event_queue_destroy(lc->msevq);
3830         lc->msevq=NULL;
3831         /* save all config */
3832         net_config_uninit(lc);
3833         sip_config_uninit(lc);
3834         rtp_config_uninit(lc);
3835         sound_config_uninit(lc);
3836         video_config_uninit(lc);
3837         codecs_config_uninit(lc);
3838         ui_config_uninit(lc);
3839         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
3840         lp_config_destroy(lc->config);
3841         lc->config = NULL; /* Mark the config as NULL to block further calls */
3842         sip_setup_unregister_all();
3843
3844         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
3845         lc->call_logs=ms_list_free(lc->call_logs);
3846
3847         linphone_core_free_payload_types();
3848
3849         ortp_exit();
3850         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
3851 }
3852
3853 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
3854         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
3855         // second get the list of available proxies
3856         const MSList *elem=linphone_core_get_proxy_config_list(lc);
3857         for(;elem!=NULL;elem=elem->next){
3858                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3859                 if (linphone_proxy_config_register_enabled(cfg) ) {
3860                         if (!isReachable) {
3861                                 cfg->registered=0;
3862                         }else{
3863                                 cfg->commit=TRUE;
3864                         }
3865                 }
3866         }
3867         lc->netup_time=curtime;
3868         lc->network_reachable=isReachable;
3869 }
3870
3871 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
3872         //first disable automatic mode
3873         if (lc->auto_net_state_mon) {
3874                 ms_message("Disabling automatic network state monitoring");
3875                 lc->auto_net_state_mon=FALSE;
3876         }
3877         set_network_reachable(lc,isReachable, ms_time(NULL));
3878 }
3879
3880 bool_t linphone_core_is_network_reachabled(LinphoneCore* lc) {
3881         return lc->network_reachable;
3882 }
3883 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
3884         return sal_get_socket(lc->sal);
3885 }
3886 /**
3887  * Destroys a LinphoneCore
3888  *
3889  * @ingroup initializing
3890 **/
3891 void linphone_core_destroy(LinphoneCore *lc){
3892         linphone_core_uninit(lc);
3893         ms_free(lc);
3894 }
3895 /**
3896  * Get the number of Call
3897  *
3898  * @ingroup call_control
3899 **/
3900 int linphone_core_get_calls_nb(const LinphoneCore *lc){
3901         return  ms_list_size(lc->calls);;
3902 }
3903
3904 /**
3905  * Check if we do not have exceed the number of simultaneous call
3906  *
3907  * @ingroup call_control
3908 **/
3909 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
3910 {
3911         if(linphone_core_get_calls_nb(lc) < NB_MAX_CALLS)
3912                 return TRUE;
3913         ms_error("Maximum amount of simultaneous calls reached !");
3914         return FALSE;
3915 }
3916
3917
3918 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
3919 {
3920         if(linphone_core_can_we_add_call(lc))
3921         {
3922                 lc->calls = ms_list_append(lc->calls,call);
3923                 return 0;
3924         }
3925         return -1;
3926 }
3927
3928 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
3929 {
3930         MSList *it;
3931         MSList *the_calls = lc->calls;
3932         
3933         it=ms_list_find(the_calls,call);
3934         if (it) 
3935         {
3936                 the_calls = ms_list_remove_link(the_calls,it);
3937         }
3938         else
3939         {
3940                 ms_warning("could not find the call into the list\n");
3941                 return -1;
3942         }
3943         lc->calls = the_calls;
3944         return 0;
3945 }
3946
3947 /**
3948  * Specifiies a ring back tone to be played to far end during incoming calls.
3949 **/
3950 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
3951         if (lc->sound_conf.ringback_tone){
3952                 ms_free(lc->sound_conf.ringback_tone);
3953                 lc->sound_conf.ringback_tone=NULL;
3954         }
3955         if (file)
3956                 lc->sound_conf.ringback_tone=ms_strdup(file);
3957 }
3958
3959 /**
3960  * Returns the ring back tone played to far end during incoming calls.
3961 **/
3962 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
3963         return lc->sound_conf.ringback_tone;
3964 }
3965
3966 static PayloadType* find_payload_type_from_list(const char* type, int rate,const MSList* from) {
3967         const MSList *elem;
3968         for(elem=from;elem!=NULL;elem=elem->next){
3969                 PayloadType *pt=(PayloadType*)elem->data;
3970                 if ((strcmp((char*)type, payload_type_get_mime(pt)) == 0) && (rate == -1 || rate==pt->clock_rate)) {
3971                         return pt;
3972                 }
3973         }
3974         return NULL;
3975 }
3976
3977 /**
3978  * Get payload type  from mime type and clock rate
3979  * @ingroup media_parameters
3980  * This function searches in audio and video codecs for the given payload type name and clockrate.
3981  * Returns NULL if not found.
3982  */
3983 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate) {
3984         PayloadType* result = find_payload_type_from_list(type, rate, linphone_core_get_audio_codecs(lc));
3985         if (result)  {
3986                 return result;
3987         } else {
3988                 result = find_payload_type_from_list(type, rate, linphone_core_get_video_codecs(lc));
3989                 if (result) {
3990                         return result;
3991                 }
3992         }
3993         /*not found*/
3994         return NULL;
3995 }
3996
3997 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
3998         switch(gs){
3999                 case LinphoneGlobalOff:
4000                         return "LinphoneGlobalOff";
4001                 break;
4002                 case LinphoneGlobalOn:
4003                         return "LinphoneGlobalOn";
4004                 break;
4005                 case LinphoneGlobalStartup:
4006                         return "LinphoneGlobalStartup";
4007                 break;
4008                 case LinphoneGlobalShutdown:
4009                         return "LinphoneGlobalShutdown";
4010                 break;
4011         }
4012         return NULL;
4013 }
4014
4015 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
4016         return lc->state;
4017 }
4018
4019 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
4020         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
4021         p->has_video=linphone_core_video_enabled(lc);
4022         return p;
4023 }
4024
4025 const char *linphone_error_to_string(LinphoneReason err){
4026         switch(err){
4027                 case LinphoneReasonNone:
4028                         return "No error";
4029                 case LinphoneReasonNoResponse:
4030                         return "No response";
4031                 case LinphoneReasonBadCredentials:
4032                         return "Bad credentials";
4033                 case LinphoneReasonDeclined:
4034                         return "Call declined";
4035         }
4036         return "unknown error";
4037 }
4038