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1 /***************************************************************************
2  *            private.h
3  *
4  *  Mon Jun 13 14:23:23 2005
5  *  Copyright  2005  Simon Morlat
6  *  Email simon dot morlat at linphone dot org
7  ****************************************************************************/
8
9 /*
10  *  This program is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License as published by
12  *  the Free Software Foundation; either version 2 of the License, or
13  *  (at your option) any later version.
14  *
15  *  This program is distributed in the hope that it will be useful,
16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *  GNU General Public License for more details.
19  *
20  *  You should have received a copy of the GNU General Public License
21  *  along with this program; if not, write to the Free Software
22  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23  */
24
25 #ifndef _PRIVATE_H
26 #define _PRIVATE_H
27 #ifdef __cplusplus
28 extern "C" {
29 #endif
30 #include "linphonecore.h"
31 #include "linphone_tunnel.h"
32 #include "linphonecore_utils.h"
33 #include "sal.h"
34
35 #ifdef HAVE_CONFIG_H
36 #include "config.h"
37 #endif
38 #include "mediastreamer2/ice.h"
39 #include "mediastreamer2/mediastream.h"
40 #include "mediastreamer2/msconference.h"
41
42 #ifndef LIBLINPHONE_VERSION
43 #define LIBLINPHONE_VERSION LINPHONE_VERSION
44 #endif
45
46 #ifndef PACKAGE_SOUND_DIR
47 #define PACKAGE_SOUND_DIR "."
48 #endif
49
50 #ifndef PACKAGE_DATA_DIR
51 #define PACKAGE_DATA_DIR "."
52 #endif
53
54 #ifdef HAVE_GETTEXT
55 #include <libintl.h>
56 #ifndef _
57 #define _(String) gettext(String)
58 #endif
59 #else
60 #ifndef _
61 #define _(something)    (something)
62 #endif
63 #ifndef ngettext
64 #define ngettext(singular, plural, number)      (((number)==1)?(singular):(plural))
65 #endif
66 #endif
67
68 struct _LinphoneCallParams{
69         LinphoneCall *referer; /*in case this call creation is consecutive to an incoming transfer, this points to the original call */
70         int audio_bw; /* bandwidth limit for audio stream */
71         LinphoneMediaEncryption media_encryption;
72         PayloadType *audio_codec; /*audio codec currently in use */
73         PayloadType *video_codec; /*video codec currently in use */
74         int down_bw;
75         int up_bw;
76         int down_ptime;
77         int up_ptime;
78         bool_t has_video;
79         bool_t real_early_media; /*send real media even during early media (for outgoing calls)*/
80         bool_t in_conference; /*in conference mode */
81         bool_t pad;
82         bool_t low_bandwidth;
83 };
84     
85 typedef struct _CallCallbackObj
86 {
87     LinphoneCallCbFunc _func;
88     void * _user_data;
89 }CallCallbackObj;
90
91 static const int linphone_call_magic=0x3343;
92
93 struct _LinphoneChatMessage {
94         char* message;
95         LinphoneChatRoom* chat_room;
96         LinphoneChatMessageStateChangeCb cb;
97         void* cb_ud;
98         void* message_userdata;
99         char* external_body_url;
100         LinphoneAddress* from;
101 };
102
103 typedef struct StunCandidate{
104         char addr[64];
105         int port;
106 }StunCandidate;
107
108
109 struct _LinphoneCall
110 {
111         int magic; /*used to distinguish from proxy config*/
112         struct _LinphoneCore *core;
113         SalMediaDescription *localdesc;
114         SalMediaDescription *resultdesc;
115         LinphoneCallDir dir;
116         LinphoneCall *referer; /*when this call is the result of a transfer, referer is set to the original call that caused the transfer*/
117         struct _RtpProfile *audio_profile;
118         struct _RtpProfile *video_profile;
119         struct _LinphoneCallLog *log;
120         SalOp *op;
121         SalOp *ping_op;
122         char localip[LINPHONE_IPADDR_SIZE]; /* our best guess for local ipaddress for this call */
123         time_t start_time; /*time at which the call was initiated*/
124         time_t media_start_time; /*time at which it was accepted, media streams established*/
125         LinphoneCallState       state;
126         LinphoneCallState transfer_state; /*idle if no transfer*/
127         LinphoneReason reason;
128         LinphoneProxyConfig *dest_proxy;
129         int refcnt;
130         void * user_pointer;
131         int audio_port;
132         int video_port;
133         StunCandidate ac,vc; /*audio video ip/port discovered by STUN*/
134         struct _AudioStream *audiostream;  /**/
135         struct _VideoStream *videostream;
136         MSAudioEndpoint *endpoint; /*used for conferencing*/
137         char *refer_to;
138         LinphoneCallParams params;
139         LinphoneCallParams current_params;
140         LinphoneCallParams remote_params;
141         int up_bw; /*upload bandwidth setting at the time the call is started. Used to detect if it changes during a call */
142         int audio_bw;   /*upload bandwidth used by audio */
143         OrtpEvQueue *audiostream_app_evq;
144         char *auth_token;
145         OrtpEvQueue *videostream_app_evq;
146         CallCallbackObj nextVideoFrameDecoded;
147         LinphoneCallStats stats[2];
148         IceSession *ice_session;
149         LinphoneChatMessage* pending_message;
150         int ping_time;
151         unsigned int remote_session_id;
152         unsigned int remote_session_ver;
153         bool_t refer_pending;
154         bool_t media_pending;
155         bool_t audio_muted;
156         bool_t camera_active;
157         
158         bool_t all_muted; /*this flag is set during early medias*/
159         bool_t playing_ringbacktone;
160         bool_t owns_call_log;
161         bool_t ringing_beep; /* whether this call is ringing through an already existent current call*/
162         
163         bool_t videostream_encrypted;
164         bool_t audiostream_encrypted;
165         bool_t auth_token_verified;
166         bool_t defer_update;
167         
168         bool_t was_automatically_paused;
169         bool_t ping_replied;
170 };
171
172
173 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params);
174 LinphoneCall * linphone_call_new_incoming(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op);
175 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message);
176
177 /* private: */
178 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *local, LinphoneAddress * remote);
179 void linphone_call_log_completed(LinphoneCall *call);
180 void linphone_call_log_destroy(LinphoneCallLog *cl);
181 void linphone_call_set_transfer_state(LinphoneCall* call, LinphoneCallState state);
182
183 void linphone_auth_info_write_config(struct _LpConfig *config, LinphoneAuthInfo *obj, int pos);
184
185 void linphone_core_update_proxy_register(LinphoneCore *lc);
186 void linphone_core_refresh_subscribes(LinphoneCore *lc);
187 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error);
188
189 int linphone_proxy_config_send_publish(LinphoneProxyConfig *cfg, LinphoneOnlineStatus os);
190 void linphone_proxy_config_set_state(LinphoneProxyConfig *cfg, LinphoneRegistrationState rstate, const char *message);
191
192 int linphone_online_status_to_eXosip(LinphoneOnlineStatus os);
193 void linphone_friend_close_subscriptions(LinphoneFriend *lf);
194 void linphone_friend_notify(LinphoneFriend *lf, LinphoneOnlineStatus os);
195 LinphoneFriend *linphone_find_friend_by_inc_subscribe(MSList *l, SalOp *op);
196 LinphoneFriend *linphone_find_friend_by_out_subscribe(MSList *l, SalOp *op);
197
198 int parse_hostname_to_addr(const char *server, struct sockaddr_storage *ss, socklen_t *socklen);
199 int set_lock_file();
200 int get_lock_file();
201 int remove_lock_file();
202 void check_sound_device(LinphoneCore *lc);
203 void linphone_core_get_local_ip(LinphoneCore *lc, const char *to, char *result);
204 bool_t host_has_ipv6_network();
205 bool_t lp_spawn_command_line_sync(const char *command, char **result,int *command_ret);
206
207 static inline int get_min_bandwidth(int dbw, int ubw){
208         if (dbw<=0) return ubw;
209         if (ubw<=0) return dbw;
210         return MIN(dbw,ubw);
211 }
212
213 static inline bool_t bandwidth_is_greater(int bw1, int bw2){
214         if (bw1<0) return TRUE;
215         else if (bw2<0) return FALSE;
216         else return bw1>=bw2;
217 }
218
219 static inline int get_video_bandwidth(int total, int audio){
220         if (total<=0) return 0;
221         return total-audio-10;
222 }
223
224 static inline void set_string(char **dest, const char *src){
225         if (*dest){
226                 ms_free(*dest);
227                 *dest=NULL;
228         }
229         if (src)
230                 *dest=ms_strdup(src);
231 }
232
233 #define PAYLOAD_TYPE_ENABLED    PAYLOAD_TYPE_USER_FLAG_0
234
235 SalPresenceStatus linphone_online_status_to_sal(LinphoneOnlineStatus os);
236 void linphone_process_authentication(LinphoneCore* lc, SalOp *op);
237 void linphone_authentication_ok(LinphoneCore *lc, SalOp *op);
238 void linphone_subscription_new(LinphoneCore *lc, SalOp *op, const char *from);
239 void linphone_notify_recv(LinphoneCore *lc, SalOp *op, SalSubscribeStatus ss, SalPresenceStatus status);
240 void linphone_proxy_config_process_authentication_failure(LinphoneCore *lc, SalOp *op);
241
242 void linphone_subscription_answered(LinphoneCore *lc, SalOp *op);
243 void linphone_subscription_closed(LinphoneCore *lc, SalOp *op);
244
245 MSList *linphone_find_friend(MSList *fl, const LinphoneAddress *fri, LinphoneFriend **lf);
246
247 void linphone_core_update_allocated_audio_bandwidth(LinphoneCore *lc);
248 void linphone_core_update_allocated_audio_bandwidth_in_call(LinphoneCall *call, const PayloadType *pt);
249
250 int linphone_core_run_stun_tests(LinphoneCore *lc, LinphoneCall *call);
251 void linphone_core_adapt_to_network(LinphoneCore *lc, int ping_time_ms, LinphoneCallParams *params);
252 int linphone_core_gather_ice_candidates(LinphoneCore *lc, LinphoneCall *call);
253 void linphone_core_update_ice_state_in_call_stats(LinphoneCall *call);
254 void linphone_core_update_local_media_description_from_ice(SalMediaDescription *desc, IceSession *session);
255 void linphone_core_update_ice_from_remote_media_description(LinphoneCall *call, const SalMediaDescription *md);
256 bool_t linphone_core_media_description_contains_video_stream(const SalMediaDescription *md);
257
258 void linphone_core_send_initial_subscribes(LinphoneCore *lc);
259 void linphone_core_write_friends_config(LinphoneCore* lc);
260 void linphone_friend_write_to_config_file(struct _LpConfig *config, LinphoneFriend *lf, int index);
261 LinphoneFriend * linphone_friend_new_from_config_file(struct _LinphoneCore *lc, int index);
262
263 void linphone_proxy_config_update(LinphoneProxyConfig *cfg);
264 void linphone_proxy_config_get_contact(LinphoneProxyConfig *cfg, const char **ip, int *port);
265 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri);
266 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route);
267 int linphone_core_get_local_ip_for(int type, const char *dest, char *result);
268
269 LinphoneProxyConfig *linphone_proxy_config_new_from_config_file(struct _LpConfig *config, int index);
270 void linphone_proxy_config_write_to_config_file(struct _LpConfig* config,LinphoneProxyConfig *obj, int index);
271
272 int linphone_proxy_config_normalize_number(LinphoneProxyConfig *cfg, const char *username, char *result, size_t result_len);
273
274 void linphone_core_message_received(LinphoneCore *lc, const char *from, const char *raw_msg,const char* external_url);
275
276 void linphone_core_play_tone(LinphoneCore *lc);
277
278 void linphone_call_init_stats(LinphoneCallStats *stats, int type);
279
280 void linphone_call_init_audio_stream(LinphoneCall *call);
281 void linphone_call_init_video_stream(LinphoneCall *call);
282 void linphone_call_init_media_streams(LinphoneCall *call);
283 void linphone_call_start_media_streams(LinphoneCall *call, bool_t all_inputs_muted, bool_t send_ringbacktone);
284 void linphone_call_start_media_streams_for_ice_gathering(LinphoneCall *call);
285 void linphone_call_stop_audio_stream(LinphoneCall *call);
286 void linphone_call_stop_video_stream(LinphoneCall *call);
287 void linphone_call_stop_media_streams(LinphoneCall *call);
288 void linphone_call_delete_ice_session(LinphoneCall *call);
289 void linphone_call_stop_media_streams_for_ice_gathering(LinphoneCall *call);
290 void linphone_call_update_crypto_parameters(LinphoneCall *call, SalMediaDescription *old_md, SalMediaDescription *new_md);
291 void linphone_call_update_remote_session_id_and_ver(LinphoneCall *call);
292
293 const char * linphone_core_get_identity(LinphoneCore *lc);
294 const char * linphone_core_get_route(LinphoneCore *lc);
295 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose);
296 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progresses);
297 void linphone_core_stop_waiting(LinphoneCore *lc);
298
299 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy);
300 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call);
301 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call);
302 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call);
303 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call);
304 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call);
305 extern SalCallbacks linphone_sal_callbacks;
306 void linphone_proxy_config_set_error(LinphoneProxyConfig *cfg, LinphoneReason error);
307 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc);
308
309 LinphoneCall * is_a_linphone_call(void *user_pointer);
310 LinphoneProxyConfig * is_a_linphone_proxy_config(void *user_pointer);
311
312 static const int linphone_proxy_config_magic=0x7979;
313
314 /*chat*/        
315 void linphone_chat_message_destroy(LinphoneChatMessage* msg);
316 /**/    
317
318 struct _LinphoneProxyConfig
319 {
320         int magic;
321         struct _LinphoneCore *lc;
322         char *reg_proxy;
323         char *reg_identity;
324         char *reg_route;
325         char *realm;
326         char *contact_params;
327         int expires;
328         int reg_time;
329         SalOp *op;
330         char *type;
331         struct _SipSetupContext *ssctx;
332         int auth_failures;
333         char *dial_prefix;
334         LinphoneRegistrationState state;
335         SalOp *publish_op;
336         bool_t commit;
337         bool_t reg_sendregister;
338         bool_t publish;
339         bool_t dial_escape_plus;
340         void* user_data;
341         time_t deletion_date;
342         LinphoneReason error;
343 };
344
345 struct _LinphoneAuthInfo
346 {
347         char *username;
348         char *realm;
349         char *userid;
350         char *passwd;
351         char *ha1;
352         int usecount;
353         time_t last_use_time;
354         bool_t works;
355 };
356
357 struct _LinphoneChatRoom{
358         struct _LinphoneCore *lc;
359         char  *peer;
360         LinphoneAddress *peer_url;
361         void * user_data;
362 };
363
364
365         
366 struct _LinphoneFriend{
367         LinphoneAddress *uri;
368         SalOp *insub;
369         SalOp *outsub;
370         LinphoneSubscribePolicy pol;
371         LinphoneOnlineStatus status;
372         struct _LinphoneCore *lc;
373         BuddyInfo *info;
374         char *refkey;
375         bool_t subscribe;
376         bool_t subscribe_active;
377         bool_t inc_subscribe_pending;
378         bool_t commit;
379 };
380
381
382 typedef struct sip_config
383 {
384         char *contact;
385         char *guessed_contact;
386         MSList *proxies;
387         MSList *deleted_proxies;
388         int inc_timeout;        /*timeout after an un-answered incoming call is rejected*/
389         int in_call_timeout;    /*timeout after a call is hangup */
390         unsigned int keepalive_period; /* interval in ms between keep alive messages sent to the proxy server*/
391         LCSipTransports transports;
392         bool_t use_info;
393         bool_t use_rfc2833;     /*force RFC2833 to be sent*/
394         bool_t guess_hostname;
395         bool_t loopback_only;
396         bool_t ipv6_enabled;
397         bool_t sdp_200_ack;
398         bool_t register_only_when_network_is_up;
399         bool_t ping_with_options;
400         bool_t auto_net_state_mon;
401 } sip_config_t;
402
403 typedef struct rtp_config
404 {
405         int audio_rtp_min_port;
406         int audio_rtp_max_port;
407         int video_rtp_min_port;
408         int video_rtp_max_port;
409         int audio_jitt_comp;  /*jitter compensation*/
410         int video_jitt_comp;  /*jitter compensation*/
411         int nortp_timeout;
412         bool_t rtp_no_xmit_on_audio_mute;
413                               /* stop rtp xmit when audio muted */
414         bool_t audio_adaptive_jitt_comp_enabled;
415         bool_t video_adaptive_jitt_comp_enabled;
416         bool_t pad;
417 }rtp_config_t;
418
419
420
421 typedef struct net_config
422 {
423         char *nat_address; /* may be IP or host name */
424         char *nat_address_ip; /* ip translated from nat_address */
425         char *stun_server;
426         char *relay;
427         int download_bw;
428         int upload_bw;
429         int firewall_policy;
430         int mtu;
431         bool_t nat_sdp_only;
432 }net_config_t;
433
434
435 typedef struct sound_config
436 {
437         struct _MSSndCard * ring_sndcard;       /* the playback sndcard currently used */
438         struct _MSSndCard * play_sndcard;       /* the playback sndcard currently used */
439         struct _MSSndCard * capt_sndcard; /* the capture sndcard currently used */
440         struct _MSSndCard * lsd_card; /* dummy playback card for Linphone Sound Daemon extension */
441         const char **cards;
442         int latency;    /* latency in samples of the current used sound device */
443         float soft_play_lev; /*playback gain in db.*/
444         float soft_mic_lev; /*mic gain in db.*/
445         char rec_lev;
446         char play_lev;
447         char ring_lev;
448         char source;
449         char *local_ring;
450         char *remote_ring;
451         char *ringback_tone;
452         bool_t ec;
453         bool_t ea;
454         bool_t agc;
455 } sound_config_t;
456
457 typedef struct codecs_config
458 {
459         MSList *audio_codecs;  /* list of audio codecs in order of preference*/
460         MSList *video_codecs;   /* for later use*/
461 }codecs_config_t;
462
463 typedef struct video_config{
464         struct _MSWebCam *device;
465         const char **cams;
466         MSVideoSize vsize;
467         bool_t capture;
468         bool_t show_local;
469         bool_t display;
470         bool_t selfview; /*during calls*/
471         const char *displaytype;
472 }video_config_t;
473
474 typedef struct ui_config
475 {
476         int is_daemon;
477         int is_applet;
478         unsigned int timer_id;  /* the timer id for registration */
479 }ui_config_t;
480
481
482
483 typedef struct autoreplier_config
484 {
485         int enabled;
486         int after_seconds;              /* accept the call after x seconds*/
487         int max_users;                  /* maximum number of user that can call simultaneously */
488         int max_rec_time;       /* the max time of incoming voice recorded */
489         int max_rec_msg;                /* maximum number of recorded messages */
490         const char *message;            /* the path of the file to be played */
491 }autoreplier_config_t;
492
493 struct _LinphoneConference{
494         MSAudioConference *conf;
495         AudioStream *local_participant;
496         MSAudioEndpoint *local_endpoint;
497         RtpProfile *local_dummy_profile;
498         bool_t local_muted;
499 };
500
501 typedef struct _LinphoneConference LinphoneConference;
502
503 struct _LinphoneCore
504 {
505         LinphoneCoreVTable vtable;
506         Sal *sal;
507         LinphoneGlobalState state;
508         struct _LpConfig *config;
509         RtpProfile *default_profile;
510         net_config_t net_conf;
511         sip_config_t sip_conf;
512         rtp_config_t rtp_conf;
513         sound_config_t sound_conf;
514         video_config_t video_conf;
515         codecs_config_t codecs_conf;
516         ui_config_t ui_conf;
517         autoreplier_config_t autoreplier_conf;
518         MSList *payload_types;
519         int dyn_pt;
520         LinphoneProxyConfig *default_proxy;
521         MSList *friends;
522         MSList *auth_info;
523         struct _RingStream *ringstream;
524         time_t dmfs_playing_start_time;
525         LCCallbackObj preview_finished_cb;
526         LinphoneCall *current_call;   /* the current call */
527         MSList *calls;                          /* all the processed calls */
528         MSList *queued_calls;   /* used by the autoreplier */
529         MSList *call_logs;
530         MSList *chatrooms;
531         int max_call_logs;
532         int missed_calls;
533         VideoPreview *previewstream;
534         struct _MSEventQueue *msevq;
535         LinphoneRtpTransportFactories *rtptf;
536         MSList *bl_reqs;
537         MSList *subscribers;    /* unknown subscribers */
538         int minutes_away;
539         LinphoneOnlineStatus presence_mode;
540         char *alt_contact;
541         void *data;
542         char *play_file;
543         char *rec_file;
544         time_t prevtime;
545         int audio_bw;
546         LinphoneWaitingCallback wait_cb;
547         void *wait_ctx;
548         unsigned long video_window_id;
549         unsigned long preview_window_id;
550         time_t netup_time; /*time when network went reachable */
551         struct _EcCalibrator *ecc;
552         MSList *hooks;
553         LinphoneConference conf_ctx;
554         char* zrtp_secrets_cache;
555         LinphoneVideoPolicy video_policy;
556         bool_t use_files;
557         bool_t apply_nat_settings;
558         bool_t initial_subscribes_sent;
559         bool_t bl_refresh;
560         
561         bool_t preview_finished;
562         bool_t auto_net_state_mon;
563         bool_t network_reachable;
564         bool_t use_preview_window;
565         
566         time_t network_last_check;
567         bool_t network_last_status;
568
569         bool_t ringstream_autorelease;
570         bool_t pad[3];
571         int device_rotation;
572         int max_calls;
573         LinphoneTunnel *tunnel;
574         char* device_id;
575         MSList *last_recv_msg_ids;
576 };
577
578 LinphoneTunnel *linphone_core_tunnel_new(LinphoneCore *lc);
579 void linphone_tunnel_destroy(LinphoneTunnel *tunnel);
580 void linphone_tunnel_configure(LinphoneTunnel *tunnel);
581 void linphone_tunnel_enable_logs_with_handler(LinphoneTunnel *tunnel, bool_t enabled, OrtpLogFunc logHandler);
582         
583 bool_t linphone_core_can_we_add_call(LinphoneCore *lc);
584 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call);
585 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call);
586 int linphone_core_set_as_current_call(LinphoneCore *lc, LinphoneCall *call);
587 int linphone_core_get_calls_nb(const LinphoneCore *lc);
588
589 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message);
590 void linphone_call_make_local_media_description(LinphoneCore *lc, LinphoneCall *call);
591 void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md);
592
593 bool_t linphone_core_is_payload_type_usable_for_bandwidth(LinphoneCore *lc, PayloadType *pt,  int bandwidth_limit);
594
595 #define linphone_core_ready(lc) ((lc)->state!=LinphoneGlobalStartup)
596 void _linphone_core_configure_resolver();
597
598 struct _EcCalibrator{
599         ms_thread_t thread;
600         MSSndCard *play_card,*capt_card;
601         MSFilter *sndread,*det,*rec;
602         MSFilter *play, *gen, *sndwrite;
603         MSFilter *read_resampler,*write_resampler;
604         MSTicker *ticker;
605         LinphoneEcCalibrationCallback cb;
606         void *cb_data;
607         int recv_count;
608         int sent_count;
609         int64_t acc;
610         int delay;
611         unsigned int rate;
612         LinphoneEcCalibratorStatus status;
613 };
614
615 typedef struct _EcCalibrator EcCalibrator;
616
617 LinphoneEcCalibratorStatus ec_calibrator_get_status(EcCalibrator *ecc);
618
619 void ec_calibrator_destroy(EcCalibrator *ecc);
620
621 void linphone_call_background_tasks(LinphoneCall *call, bool_t one_second_elapsed);
622 void linphone_core_preempt_sound_resources(LinphoneCore *lc);
623 /*conferencing subsystem*/
624 void _post_configure_audio_stream(AudioStream *st, LinphoneCore *lc, bool_t muted);
625 /* When a conference participant pause the conference he may send a music.
626  * We don't want to hear that music or to send it to the other participants.
627  * Use muted=yes to handle this case.
628  */
629 void linphone_call_add_to_conf(LinphoneCall *call, bool_t muted);
630 void linphone_call_remove_from_conf(LinphoneCall *call);
631 void linphone_core_conference_check_uninit(LinphoneCore *lc);
632 bool_t linphone_core_sound_resources_available(LinphoneCore *lc);
633 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall);
634 unsigned int linphone_core_get_audio_features(LinphoneCore *lc);
635
636 void __linphone_core_invalidate_registers(LinphoneCore* lc);
637 void _linphone_core_codec_config_write(LinphoneCore *lc);
638
639 #define HOLD_OFF        (0)
640 #define HOLD_ON         (1)
641
642 #ifndef NB_MAX_CALLS
643 #define NB_MAX_CALLS    (10)
644 #endif
645 void call_logs_write_to_config_file(LinphoneCore *lc);
646
647 int linphone_core_get_edge_bw(LinphoneCore *lc);
648 int linphone_core_get_edge_ptime(LinphoneCore *lc);
649
650 #ifdef __cplusplus
651 }
652 #endif
653
654 #endif /* _PRIVATE_H */