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