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support early media sending for outgoing calls
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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
28 #include "linphonecore.h"
29 #include "sal.h"
30
31 #ifdef HAVE_CONFIG_H
32 #include "config.h"
33 #endif
34 #include "mediastreamer2/mediastream.h"
35
36 #ifndef LIBLINPHONE_VERSION 
37 #define LIBLINPHONE_VERSION LINPHONE_VERSION
38 #endif
39
40 #ifndef PACKAGE_SOUND_DIR 
41 #define PACKAGE_SOUND_DIR "."
42 #endif
43
44 #ifdef HAVE_GETTEXT
45 #include <libintl.h>
46 #ifndef _
47 #define _(String) gettext(String)
48 #endif
49 #else
50 #ifndef _
51 #define _(something)    (something)
52 #endif
53 #ifndef ngettext
54 #define ngettext(singular, plural, number)      (((number)==1)?(singular):(plural))
55 #endif
56 #endif
57
58
59 struct _LinphoneCallParams{
60         LinphoneCall *referer; /*in case this call creation is consecutive to an incoming transfer, this points to the original call */
61         bool_t has_video;
62         bool_t real_early_media; /*send real media even during early media (for outgoing calls)*/
63         bool_t pad[2];
64 };
65
66 struct _LinphoneCall
67 {
68         struct _LinphoneCore *core;
69         SalMediaDescription *localdesc;
70         SalMediaDescription *resultdesc;
71         LinphoneCallDir dir;
72         struct _RtpProfile *audio_profile;
73         struct _RtpProfile *video_profile;
74         struct _LinphoneCallLog *log;
75         SalOp *op;
76         SalOp *ping_op;
77         char localip[LINPHONE_IPADDR_SIZE]; /* our best guess for local ipaddress for this call */
78         time_t start_time; /*time at which the call was initiated*/
79         time_t media_start_time; /*time at which it was accepted, media streams established*/
80         LinphoneCallState       state;
81         LinphoneReason reason;
82         int refcnt;
83         void * user_pointer;
84         int audio_port;
85         int video_port;
86         struct _AudioStream *audiostream;  /**/
87         struct _VideoStream *videostream;
88         char *refer_to;
89         LinphoneCallParams params;
90         bool_t refer_pending;
91         bool_t media_pending;
92         bool_t audio_muted;
93         bool_t camera_active;
94         bool_t all_muted; /*this flag is set during early medias*/
95 };
96
97
98 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params);
99 LinphoneCall * linphone_call_new_incoming(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op);
100 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message);
101
102 /* private: */
103 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *local, LinphoneAddress * remote);
104 void linphone_call_log_completed(LinphoneCallLog *calllog, LinphoneCall *call, LinphoneCallStatus status);
105 void linphone_call_log_destroy(LinphoneCallLog *cl);
106
107 void linphone_auth_info_write_config(struct _LpConfig *config, LinphoneAuthInfo *obj, int pos);
108
109 void linphone_core_update_proxy_register(LinphoneCore *lc);
110 void linphone_core_refresh_subscribes(LinphoneCore *lc);
111 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error);
112
113 int linphone_proxy_config_send_publish(LinphoneProxyConfig *cfg, LinphoneOnlineStatus os);
114 void linphone_proxy_config_set_state(LinphoneProxyConfig *cfg, LinphoneRegistrationState rstate, const char *message);
115
116 int linphone_online_status_to_eXosip(LinphoneOnlineStatus os);
117 void linphone_friend_close_subscriptions(LinphoneFriend *lf);
118 void linphone_friend_notify(LinphoneFriend *lf, LinphoneOnlineStatus os);
119 LinphoneFriend *linphone_find_friend_by_inc_subscribe(MSList *l, SalOp *op);
120 LinphoneFriend *linphone_find_friend_by_out_subscribe(MSList *l, SalOp *op);
121
122
123 int set_lock_file();
124 int get_lock_file();
125 int remove_lock_file();
126 int do_registration(LinphoneCore *lc, bool_t doit);
127 void check_for_registration(LinphoneCore *lc);
128 void check_sound_device(LinphoneCore *lc);
129 void linphone_core_verify_codecs(LinphoneCore *lc);
130 void linphone_core_get_local_ip(LinphoneCore *lc, const char *to, char *result);
131 bool_t host_has_ipv6_network();
132 bool_t lp_spawn_command_line_sync(const char *command, char **result,int *command_ret);
133
134 static inline int get_min_bandwidth(int dbw, int ubw){
135         if (dbw<=0) return ubw;
136         if (ubw<=0) return dbw;
137         return MIN(dbw,ubw);
138 }
139
140 static inline bool_t bandwidth_is_greater(int bw1, int bw2){
141         if (bw1<0) return TRUE;
142         else if (bw2<0) return FALSE;
143         else return bw1>=bw2;
144 }
145
146 static inline void set_string(char **dest, const char *src){
147         if (*dest){
148                 ms_free(*dest);
149                 *dest=NULL;
150         }
151         if (src)
152                 *dest=ms_strdup(src);
153 }
154
155 #define PAYLOAD_TYPE_ENABLED    PAYLOAD_TYPE_USER_FLAG_0
156
157 SalPresenceStatus linphone_online_status_to_sal(LinphoneOnlineStatus os);
158 void linphone_process_authentication(LinphoneCore* lc, SalOp *op);
159 void linphone_authentication_ok(LinphoneCore *lc, SalOp *op);
160 void linphone_subscription_new(LinphoneCore *lc, SalOp *op, const char *from);
161 void linphone_notify_recv(LinphoneCore *lc, SalOp *op, SalSubscribeState ss, SalPresenceStatus status);
162 void linphone_proxy_config_process_authentication_failure(LinphoneCore *lc, SalOp *op);
163
164 void linphone_subscription_answered(LinphoneCore *lc, SalOp *op);
165 void linphone_subscription_closed(LinphoneCore *lc, SalOp *op);
166
167 MSList *linphone_find_friend(MSList *fl, const LinphoneAddress *fri, LinphoneFriend **lf);
168
169 void linphone_core_update_allocated_audio_bandwidth(LinphoneCore *lc);
170 void linphone_core_update_allocated_audio_bandwidth_in_call(LinphoneCore *lc, const PayloadType *pt);
171 void linphone_core_run_stun_tests(LinphoneCore *lc, LinphoneCall *call);
172
173 void linphone_core_send_initial_subscribes(LinphoneCore *lc);
174 void linphone_core_write_friends_config(LinphoneCore* lc);
175 void linphone_friend_write_to_config_file(struct _LpConfig *config, LinphoneFriend *lf, int index);
176 LinphoneFriend * linphone_friend_new_from_config_file(struct _LinphoneCore *lc, int index);
177
178 void linphone_proxy_config_update(LinphoneProxyConfig *cfg);
179 void linphone_proxy_config_get_contact(LinphoneProxyConfig *cfg, const char **ip, int *port);
180 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri);
181 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route);
182 int linphone_core_get_local_ip_for(int type, const char *dest, char *result);
183
184 LinphoneProxyConfig *linphone_proxy_config_new_from_config_file(struct _LpConfig *config, int index);
185 void linphone_proxy_config_write_to_config_file(struct _LpConfig* config,LinphoneProxyConfig *obj, int index);
186
187 int linphone_proxy_config_normalize_number(LinphoneProxyConfig *cfg, const char *username, char *result, size_t result_len);
188
189 void linphone_core_text_received(LinphoneCore *lc, const char *from, const char *msg);
190
191 void linphone_call_init_media_streams(LinphoneCall *call);
192 void linphone_call_start_media_streams(LinphoneCall *call, bool_t all_inputs_muted, bool_t send_ringbacktone);
193 void linphone_call_stop_media_streams(LinphoneCall *call);
194
195 const char * linphone_core_get_identity(LinphoneCore *lc);
196 const char * linphone_core_get_route(LinphoneCore *lc);
197 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose);
198 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progresses);
199 void linphone_core_stop_waiting(LinphoneCore *lc);
200
201 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy);
202 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call);
203 extern SalCallbacks linphone_sal_callbacks;
204 void linphone_proxy_config_set_error(LinphoneProxyConfig *cfg, LinphoneReason error);
205
206 struct _LinphoneProxyConfig
207 {
208         struct _LinphoneCore *lc;
209         char *reg_proxy;
210         char *reg_identity;
211         char *reg_route;
212         char *realm;
213         int expires;
214         int reg_time;
215         SalOp *op;
216         char *type;
217         struct _SipSetupContext *ssctx;
218         int auth_failures;
219         char *dial_prefix;
220         LinphoneRegistrationState state;
221         SalOp *publish_op;
222         bool_t commit;
223         bool_t reg_sendregister;
224         bool_t registered;
225         bool_t publish;
226         bool_t dial_escape_plus;
227         void* user_data;
228         time_t deletion_date;
229         LinphoneReason error;
230 };
231
232 struct _LinphoneAuthInfo 
233 {
234         char *username;
235         char *realm;
236         char *userid;
237         char *passwd;
238         char *ha1;
239         int usecount;
240         bool_t works;
241 };
242
243 struct _LinphoneChatRoom{
244         struct _LinphoneCore *lc;
245         char  *peer;
246         LinphoneAddress *peer_url;
247         SalOp *op;
248         void * user_data;
249 };
250
251 struct _LinphoneFriend{
252         LinphoneAddress *uri;
253         SalOp *insub;
254         SalOp *outsub;
255         LinphoneSubscribePolicy pol;
256         LinphoneOnlineStatus status;
257         struct _LinphoneCore *lc;
258         BuddyInfo *info;
259         char *refkey;
260         bool_t subscribe;
261         bool_t subscribe_active;
262         bool_t inc_subscribe_pending;
263         bool_t commit;
264 };      
265
266
267 typedef struct sip_config
268 {
269         char *contact;
270         char *guessed_contact;
271         MSList *proxies;
272         MSList *deleted_proxies;
273         int inc_timeout;        /*timeout after an un-answered incoming call is rejected*/
274         unsigned int keepalive_period; /* interval in ms between keep alive messages sent to the proxy server*/
275         LCSipTransports transports;
276         bool_t use_info;
277         bool_t use_rfc2833;     /*force RFC2833 to be sent*/
278         bool_t guess_hostname;
279         bool_t loopback_only;
280         bool_t ipv6_enabled;
281         bool_t sdp_200_ack;
282         bool_t only_one_codec; /*in SDP answers*/
283         bool_t register_only_when_network_is_up;
284         bool_t ping_with_options;
285         bool_t auto_net_state_mon;
286 } sip_config_t;
287
288 typedef struct rtp_config
289 {
290         int audio_rtp_port;
291         int video_rtp_port;
292         int audio_jitt_comp;  /*jitter compensation*/
293         int video_jitt_comp;  /*jitter compensation*/
294         int nortp_timeout;
295         bool_t rtp_no_xmit_on_audio_mute;                              
296                               /* stop rtp xmit when audio muted */
297 }rtp_config_t;
298
299
300
301 typedef struct net_config
302 {
303         char *nat_address;
304         char *stun_server;
305         char *relay;
306         int download_bw;
307         int upload_bw;
308         int firewall_policy;
309         int mtu;
310         int down_ptime;
311         bool_t nat_sdp_only;
312 }net_config_t;
313
314
315 typedef struct sound_config
316 {
317         struct _MSSndCard * ring_sndcard;       /* the playback sndcard currently used */
318         struct _MSSndCard * play_sndcard;       /* the playback sndcard currently used */
319         struct _MSSndCard * capt_sndcard; /* the capture sndcard currently used */
320         struct _MSSndCard * lsd_card; /* dummy playback card for Linphone Sound Daemon extension */
321         const char **cards;
322         int latency;    /* latency in samples of the current used sound device */
323         char rec_lev;
324         char play_lev;
325         char ring_lev;
326         char soft_play_lev;
327         char source;
328         char *local_ring;
329         char *remote_ring;
330         char *ringback_tone;
331         bool_t ec;
332         bool_t ea;
333         bool_t agc;
334 } sound_config_t;
335
336 typedef struct codecs_config
337 {
338         MSList *audio_codecs;  /* list of audio codecs in order of preference*/
339         MSList *video_codecs;   /* for later use*/
340 }codecs_config_t;
341
342 typedef struct video_config{
343         struct _MSWebCam *device;
344         const char **cams;
345         MSVideoSize vsize;
346         bool_t capture;
347         bool_t show_local;
348         bool_t display;
349         bool_t selfview; /*during calls*/
350         const char *displaytype;
351 }video_config_t;
352
353 typedef struct ui_config
354 {
355         int is_daemon;
356         int is_applet;
357         unsigned int timer_id;  /* the timer id for registration */
358 }ui_config_t;
359
360
361
362 typedef struct autoreplier_config
363 {
364         int enabled;
365         int after_seconds;              /* accept the call after x seconds*/
366         int max_users;                  /* maximum number of user that can call simultaneously */
367         int max_rec_time;       /* the max time of incoming voice recorded */
368         int max_rec_msg;                /* maximum number of recorded messages */
369         const char *message;            /* the path of the file to be played */
370 }autoreplier_config_t;
371
372
373 struct _LinphoneCore
374 {
375         LinphoneCoreVTable vtable;
376         Sal *sal;
377         LinphoneGlobalState state;
378         struct _LpConfig *config;
379         net_config_t net_conf;
380         sip_config_t sip_conf;
381         rtp_config_t rtp_conf;
382         sound_config_t sound_conf;
383         video_config_t video_conf;
384         codecs_config_t codecs_conf;
385         ui_config_t ui_conf;
386         autoreplier_config_t autoreplier_conf;
387         LinphoneProxyConfig *default_proxy;
388         MSList *friends;
389         MSList *auth_info;
390         struct _RingStream *ringstream;
391         time_t dmfs_playing_start_time;
392         LCCallbackObj preview_finished_cb;
393         LinphoneCall *current_call;   /* the current call */
394         MSList *calls;                          /* all the processed calls */
395         MSList *queued_calls;   /* used by the autoreplier */
396         MSList *call_logs;
397         MSList *chatrooms;
398         int max_call_logs;
399         int missed_calls;
400         VideoPreview *previewstream;
401         struct _MSEventQueue *msevq;
402         RtpTransport *a_rtp,*a_rtcp;
403         MSList *bl_reqs;
404         MSList *subscribers;    /* unknown subscribers */
405         int minutes_away;
406         LinphoneOnlineStatus presence_mode;
407         char *alt_contact;
408         void *data;
409         char *play_file;
410         char *rec_file;
411         time_t prevtime;
412         int dw_audio_bw;
413         int up_audio_bw;
414         int dw_video_bw;
415         int up_video_bw;
416         int audio_bw;
417         LinphoneWaitingCallback wait_cb;
418         void *wait_ctx;
419         unsigned long video_window_id;
420         unsigned long preview_window_id;
421         time_t netup_time; /*time when network went reachable */
422         bool_t use_files;
423         bool_t apply_nat_settings;
424         bool_t initial_subscribes_sent;
425         bool_t bl_refresh;
426         bool_t preview_finished;
427         bool_t auto_net_state_mon;
428         bool_t network_reachable;
429         bool_t use_preview_window;
430 };
431
432 bool_t linphone_core_can_we_add_call(LinphoneCore *lc);
433 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call);
434 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call);
435 int linphone_core_set_as_current_call(LinphoneCore *lc, LinphoneCall *call);
436 int linphone_core_get_calls_nb(const LinphoneCore *lc);
437
438 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message);
439
440 SalMediaDescription *create_local_media_description(LinphoneCore *lc, 
441                 LinphoneCall *call, bool_t with_video, bool_t only_one_codec);
442 void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md);
443 #define linphone_core_ready(lc) ((lc)->state!=LinphoneGlobalStartup)
444 void _linphone_core_configure_resolver();
445
446 #define HOLD_OFF        (0)
447 #define HOLD_ON         (1)
448
449 #ifndef NB_MAX_CALLS
450 #define NB_MAX_CALLS    (10)
451 #endif
452
453 #endif /* _PRIVATE_H */