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