4 Copyright (C) 2010 Belledonne Communications SARL
5 (simon.morlat@linphone.org)
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License
9 as published by the Free Software Foundation; either version 2
10 of the License, or (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #include "linphonecore.h"
28 #include <ortp/event.h>
32 #include "mediastreamer2/mediastream.h"
33 #include "mediastreamer2/msvolume.h"
34 #include "mediastreamer2/msequalizer.h"
35 #include "mediastreamer2/msfileplayer.h"
36 #include "mediastreamer2/msjpegwriter.h"
37 #include "mediastreamer2/mseventqueue.h"
38 #include "mediastreamer2/mssndcard.h"
41 static MSWebCam *get_nowebcam_device(){
42 return ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),"StaticImage: Static picture");
46 static bool_t generate_b64_crypto_key(int key_length, char* key_out) {
48 uint8_t* tmp = (uint8_t*) malloc(key_length);
49 if (ortp_crypto_get_random(tmp, key_length)!=0) {
50 ms_error("Failed to generate random key");
55 b64_size = b64_encode((const char*)tmp, key_length, NULL, 0);
57 ms_error("Failed to b64 encode key");
61 key_out[b64_size] = '\0';
62 b64_encode((const char*)tmp, key_length, key_out, 40);
67 LinphoneCore *linphone_call_get_core(const LinphoneCall *call){
71 const char* linphone_call_get_authentication_token(LinphoneCall *call){
72 return call->auth_token;
75 bool_t linphone_call_get_authentication_token_verified(LinphoneCall *call){
76 return call->auth_token_verified;
79 static bool_t linphone_call_are_all_streams_encrypted(LinphoneCall *call) {
80 // Check ZRTP encryption in audiostream
81 if (!call->audiostream_encrypted) {
86 // If video enabled, check ZRTP encryption in videostream
87 const LinphoneCallParams *params=linphone_call_get_current_params(call);
88 if (params->has_video && !call->videostream_encrypted) {
96 void propagate_encryption_changed(LinphoneCall *call){
97 LinphoneCore *lc=call->core;
98 if (!linphone_call_are_all_streams_encrypted(call)) {
99 ms_message("Some streams are not encrypted");
100 call->current_params.media_encryption=LinphoneMediaEncryptionNone;
101 if (lc->vtable.call_encryption_changed)
102 lc->vtable.call_encryption_changed(call->core, call, FALSE, call->auth_token);
104 ms_message("All streams are encrypted");
105 call->current_params.media_encryption=LinphoneMediaEncryptionZRTP;
106 if (lc->vtable.call_encryption_changed)
107 lc->vtable.call_encryption_changed(call->core, call, TRUE, call->auth_token);
112 static void linphone_call_videostream_encryption_changed(void *data, bool_t encrypted){
113 ms_message("Video stream is %s", encrypted ? "encrypted" : "not encrypted");
115 LinphoneCall *call = (LinphoneCall *)data;
116 call->videostream_encrypted=encrypted;
117 propagate_encryption_changed(call);
121 static void linphone_call_audiostream_encryption_changed(void *data, bool_t encrypted) {
122 char status[255]={0};
123 ms_message("Audio stream is %s ", encrypted ? "encrypted" : "not encrypted");
125 LinphoneCall *call = (LinphoneCall *)data;
126 call->audiostream_encrypted=encrypted;
128 if (encrypted && call->core->vtable.display_status != NULL) {
129 snprintf(status,sizeof(status)-1,_("Authentication token is %s"),call->auth_token);
130 call->core->vtable.display_status(call->core, status);
133 propagate_encryption_changed(call);
137 // Enable video encryption
138 const LinphoneCallParams *params=linphone_call_get_current_params(call);
139 if (params->has_video) {
140 ms_message("Trying to enable encryption on video stream");
141 OrtpZrtpParams params;
142 params.zid_file=NULL; //unused
143 video_stream_enable_zrtp(call->videostream,call->audiostream,¶ms);
149 static void linphone_call_audiostream_auth_token_ready(void *data, const char* auth_token, bool_t verified) {
150 LinphoneCall *call=(LinphoneCall *)data;
151 if (call->auth_token != NULL)
152 ms_free(call->auth_token);
154 call->auth_token=ms_strdup(auth_token);
155 call->auth_token_verified=verified;
157 ms_message("Authentication token is %s (%s)", auth_token, verified?"verified":"unverified");
160 void linphone_call_set_authentication_token_verified(LinphoneCall *call, bool_t verified){
161 if (call->audiostream==NULL){
162 ms_error("linphone_call_set_authentication_token_verified(): No audio stream");
164 if (call->audiostream->ortpZrtpContext==NULL){
165 ms_error("linphone_call_set_authentication_token_verified(): No zrtp context.");
167 if (!call->auth_token_verified && verified){
168 ortp_zrtp_sas_verified(call->audiostream->ortpZrtpContext);
169 }else if (call->auth_token_verified && !verified){
170 ortp_zrtp_sas_reset_verified(call->audiostream->ortpZrtpContext);
172 call->auth_token_verified=verified;
173 propagate_encryption_changed(call);
176 static MSList *make_codec_list(LinphoneCore *lc, const MSList *codecs, int bandwidth_limit,int* max_sample_rate){
179 if (max_sample_rate) *max_sample_rate=0;
180 for(it=codecs;it!=NULL;it=it->next){
181 PayloadType *pt=(PayloadType*)it->data;
182 if (pt->flags & PAYLOAD_TYPE_ENABLED){
183 if (bandwidth_limit>0 && !linphone_core_is_payload_type_usable_for_bandwidth(lc,pt,bandwidth_limit)){
184 ms_message("Codec %s/%i eliminated because of audio bandwidth constraint.",pt->mime_type,pt->clock_rate);
187 if (linphone_core_check_payload_type_usability(lc,pt)){
188 l=ms_list_append(l,payload_type_clone(pt));
189 if (max_sample_rate && payload_type_get_rate(pt)>*max_sample_rate) *max_sample_rate=payload_type_get_rate(pt);
196 static SalMediaDescription *_create_local_media_description(LinphoneCore *lc, LinphoneCall *call, unsigned int session_id, unsigned int session_ver){
200 const char *me=linphone_core_get_identity(lc);
201 LinphoneAddress *addr=linphone_address_new(me);
202 const char *username=linphone_address_get_username (addr);
203 SalMediaDescription *md=sal_media_description_new();
206 md->session_id=session_id;
207 md->session_ver=session_ver;
209 strncpy(md->addr,call->localip,sizeof(md->addr));
210 strncpy(md->username,username,sizeof(md->username));
211 md->bandwidth=linphone_core_get_download_bandwidth(lc);
213 /*set audio capabilities */
214 strncpy(md->streams[0].addr,call->localip,sizeof(md->streams[0].addr));
215 md->streams[0].port=call->audio_port;
216 md->streams[0].proto=(call->params.media_encryption == LinphoneMediaEncryptionSRTP) ?
217 SalProtoRtpSavp : SalProtoRtpAvp;
218 md->streams[0].type=SalAudio;
219 md->streams[0].ptime=lc->net_conf.down_ptime;
220 l=make_codec_list(lc,lc->codecs_conf.audio_codecs,call->params.audio_bw,&md->streams[0].max_rate);
221 pt=payload_type_clone(rtp_profile_get_payload_from_mime(&av_profile,"telephone-event"));
222 l=ms_list_append(l,pt);
223 md->streams[0].payloads=l;
227 if (call->params.has_video){
229 md->streams[1].port=call->video_port;
230 md->streams[1].proto=md->streams[0].proto;
231 md->streams[1].type=SalVideo;
232 l=make_codec_list(lc,lc->codecs_conf.video_codecs,0,NULL);
233 md->streams[1].payloads=l;
236 for(i=0; i<md->nstreams; i++) {
237 if (md->streams[i].proto == SalProtoRtpSavp) {
238 md->streams[i].crypto[0].tag = 1;
239 md->streams[i].crypto[0].algo = AES_128_SHA1_80;
240 if (!generate_b64_crypto_key(30, md->streams[i].crypto[0].master_key))
241 md->streams[i].crypto[0].algo = 0;
242 md->streams[i].crypto[1].tag = 2;
243 md->streams[i].crypto[1].algo = AES_128_SHA1_32;
244 if (!generate_b64_crypto_key(30, md->streams[i].crypto[1].master_key))
245 md->streams[i].crypto[1].algo = 0;
246 md->streams[i].crypto[2].algo = 0;
250 linphone_address_destroy(addr);
254 void update_local_media_description(LinphoneCore *lc, LinphoneCall *call){
255 SalMediaDescription *md=call->localdesc;
257 call->localdesc = create_local_media_description(lc,call);
259 call->localdesc = _create_local_media_description(lc,call,md->session_id,md->session_ver+1);
260 sal_media_description_unref(md);
264 SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call){
265 unsigned int id=rand() & 0xfff;
266 return _create_local_media_description(lc,call,id,id);
269 static int find_port_offset(LinphoneCore *lc){
273 bool_t already_used=FALSE;
274 for(offset=0;offset<100;offset+=2){
275 audio_port=linphone_core_get_audio_port (lc)+offset;
277 for(elem=lc->calls;elem!=NULL;elem=elem->next){
278 LinphoneCall *call=(LinphoneCall*)elem->data;
279 if (call->audio_port==audio_port) {
284 if (!already_used) break;
287 ms_error("Could not find any free port !");
293 static void linphone_call_init_common(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
295 call->magic=linphone_call_magic;
297 call->state=LinphoneCallIdle;
298 call->transfer_state = LinphoneCallIdle;
299 call->start_time=time(NULL);
300 call->media_start_time=0;
301 call->log=linphone_call_log_new(call, from, to);
302 call->owns_call_log=TRUE;
303 linphone_core_notify_all_friends(call->core,LinphoneStatusOnThePhone);
304 port_offset=find_port_offset (call->core);
305 if (port_offset==-1) return;
306 call->audio_port=linphone_core_get_audio_port(call->core)+port_offset;
307 call->video_port=linphone_core_get_video_port(call->core)+port_offset;
311 static void discover_mtu(LinphoneCore *lc, const char *remote){
313 if (lc->net_conf.mtu==0 ){
314 /*attempt to discover mtu*/
315 mtu=ms_discover_mtu(remote);
318 ms_message("Discovered mtu is %i, RTP payload max size is %i",
319 mtu, ms_get_payload_max_size());
324 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params)
326 LinphoneCall *call=ms_new0(LinphoneCall,1);
327 call->dir=LinphoneCallOutgoing;
328 call->op=sal_op_new(lc->sal);
329 sal_op_set_user_pointer(call->op,call);
331 linphone_core_get_local_ip(lc,linphone_address_get_domain(to),call->localip);
332 linphone_call_init_common(call,from,to);
333 call->params=*params;
334 call->localdesc=create_local_media_description (lc,call);
335 call->camera_active=params->has_video;
336 if (linphone_core_get_firewall_policy(call->core)==LinphonePolicyUseStun)
337 linphone_core_run_stun_tests(call->core,call);
338 discover_mtu(lc,linphone_address_get_domain (to));
339 if (params->referer){
340 sal_call_set_referer(call->op,params->referer->op);
341 call->referer=linphone_call_ref(params->referer);
346 LinphoneCall * linphone_call_new_incoming(LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op){
347 LinphoneCall *call=ms_new0(LinphoneCall,1);
350 call->dir=LinphoneCallIncoming;
351 sal_op_set_user_pointer(op,call);
355 if (lc->sip_conf.ping_with_options){
356 /*the following sends an option request back to the caller so that
357 we get a chance to discover our nat'd address before answering.*/
358 call->ping_op=sal_op_new(lc->sal);
359 from_str=linphone_address_as_string_uri_only(from);
360 sal_op_set_route(call->ping_op,sal_op_get_network_origin(op));
361 sal_op_set_user_pointer(call->ping_op,call);
362 sal_ping(call->ping_op,linphone_core_find_best_identity(lc,from,NULL),from_str);
366 linphone_address_clean(from);
367 linphone_core_get_local_ip(lc,linphone_address_get_domain(from),call->localip);
368 linphone_call_init_common(call, from, to);
369 linphone_core_init_default_params(lc, &call->params);
370 call->params.has_video &= !!lc->video_policy.automatically_accept;
371 call->localdesc=create_local_media_description (lc,call);
372 call->camera_active=call->params.has_video;
373 if (linphone_core_get_firewall_policy(call->core)==LinphonePolicyUseStun)
374 linphone_core_run_stun_tests(call->core,call);
375 discover_mtu(lc,linphone_address_get_domain(from));
379 /* this function is called internally to get rid of a call.
380 It performs the following tasks:
381 - remove the call from the internal list of calls
382 - update the call logs accordingly
385 static void linphone_call_set_terminated(LinphoneCall *call){
386 LinphoneCore *lc=call->core;
388 linphone_core_update_allocated_audio_bandwidth(lc);
390 call->owns_call_log=FALSE;
391 linphone_call_log_completed(call);
394 if (call == lc->current_call){
395 ms_message("Resetting the current call");
396 lc->current_call=NULL;
399 if (linphone_core_del_call(lc,call) != 0){
400 ms_error("Could not remove the call from the list !!!");
403 if (ms_list_size(lc->calls)==0)
404 linphone_core_notify_all_friends(lc,lc->presence_mode);
406 linphone_core_conference_check_uninit(lc);
407 if (call->ringing_beep){
408 linphone_core_stop_dtmf(lc);
409 call->ringing_beep=FALSE;
412 linphone_call_unref(call->referer);
417 void linphone_call_fix_call_parameters(LinphoneCall *call){
418 call->params.has_video=call->current_params.has_video;
419 call->params.media_encryption=call->current_params.media_encryption;
422 const char *linphone_call_state_to_string(LinphoneCallState cs){
424 case LinphoneCallIdle:
425 return "LinphoneCallIdle";
426 case LinphoneCallIncomingReceived:
427 return "LinphoneCallIncomingReceived";
428 case LinphoneCallOutgoingInit:
429 return "LinphoneCallOutgoingInit";
430 case LinphoneCallOutgoingProgress:
431 return "LinphoneCallOutgoingProgress";
432 case LinphoneCallOutgoingRinging:
433 return "LinphoneCallOutgoingRinging";
434 case LinphoneCallOutgoingEarlyMedia:
435 return "LinphoneCallOutgoingEarlyMedia";
436 case LinphoneCallConnected:
437 return "LinphoneCallConnected";
438 case LinphoneCallStreamsRunning:
439 return "LinphoneCallStreamsRunning";
440 case LinphoneCallPausing:
441 return "LinphoneCallPausing";
442 case LinphoneCallPaused:
443 return "LinphoneCallPaused";
444 case LinphoneCallResuming:
445 return "LinphoneCallResuming";
446 case LinphoneCallRefered:
447 return "LinphoneCallRefered";
448 case LinphoneCallError:
449 return "LinphoneCallError";
450 case LinphoneCallEnd:
451 return "LinphoneCallEnd";
452 case LinphoneCallPausedByRemote:
453 return "LinphoneCallPausedByRemote";
454 case LinphoneCallUpdatedByRemote:
455 return "LinphoneCallUpdatedByRemote";
456 case LinphoneCallIncomingEarlyMedia:
457 return "LinphoneCallIncomingEarlyMedia";
458 case LinphoneCallUpdated:
459 return "LinphoneCallUpdated";
460 case LinphoneCallReleased:
461 return "LinphoneCallReleased";
463 return "undefined state";
466 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message){
467 LinphoneCore *lc=call->core;
469 if (call->state!=cstate){
470 if (call->state==LinphoneCallEnd || call->state==LinphoneCallError){
471 if (cstate!=LinphoneCallReleased){
472 ms_warning("Spurious call state change from %s to %s, ignored.",linphone_call_state_to_string(call->state),
473 linphone_call_state_to_string(cstate));
477 ms_message("Call %p: moving from state %s to %s",call,linphone_call_state_to_string(call->state),
478 linphone_call_state_to_string(cstate));
479 if (cstate!=LinphoneCallRefered){
480 /*LinphoneCallRefered is rather an event, not a state.
481 Indeed it does not change the state of the call (still paused or running)*/
484 if (cstate==LinphoneCallEnd || cstate==LinphoneCallError){
485 if (call->reason==LinphoneReasonDeclined){
486 call->log->status=LinphoneCallDeclined;
488 linphone_call_set_terminated (call);
490 if (cstate == LinphoneCallConnected) {
491 call->log->status=LinphoneCallSuccess;
492 call->media_start_time=time(NULL);
495 if (lc->vtable.call_state_changed)
496 lc->vtable.call_state_changed(lc,call,cstate,message);
497 if (cstate==LinphoneCallReleased){
498 if (call->op!=NULL) {
499 /* so that we cannot have anymore upcalls for SAL
500 concerning this call*/
501 sal_op_release(call->op);
504 linphone_call_unref(call);
509 static void linphone_call_destroy(LinphoneCall *obj)
512 sal_op_release(obj->op);
515 if (obj->resultdesc!=NULL) {
516 sal_media_description_unref(obj->resultdesc);
517 obj->resultdesc=NULL;
519 if (obj->localdesc!=NULL) {
520 sal_media_description_unref(obj->localdesc);
524 sal_op_release(obj->ping_op);
527 ms_free(obj->refer_to);
529 if (obj->owns_call_log)
530 linphone_call_log_destroy(obj->log);
531 if (obj->auth_token) {
532 ms_free(obj->auth_token);
539 * @addtogroup call_control
544 * Increments the call 's reference count.
545 * An application that wishes to retain a pointer to call object
546 * must use this function to unsure the pointer remains
547 * valid. Once the application no more needs this pointer,
548 * it must call linphone_call_unref().
550 LinphoneCall * linphone_call_ref(LinphoneCall *obj){
556 * Decrements the call object reference count.
557 * See linphone_call_ref().
559 void linphone_call_unref(LinphoneCall *obj){
562 linphone_call_destroy(obj);
567 * Returns current parameters associated to the call.
569 const LinphoneCallParams * linphone_call_get_current_params(const LinphoneCall *call){
570 return &call->current_params;
573 static bool_t is_video_active(const SalStreamDescription *sd){
574 return sd->port!=0 && sd->dir!=SalStreamInactive;
578 * Returns call parameters proposed by remote.
580 * This is useful when receiving an incoming call, to know whether the remote party
581 * supports video, encryption or whatever.
583 const LinphoneCallParams * linphone_call_get_remote_params(LinphoneCall *call){
584 LinphoneCallParams *cp=&call->remote_params;
585 memset(cp,0,sizeof(*cp));
587 SalMediaDescription *md=sal_call_get_remote_media_description(call->op);
589 SalStreamDescription *asd,*vsd,*secure_asd,*secure_vsd;
591 asd=sal_media_description_find_stream(md,SalProtoRtpAvp,SalAudio);
592 vsd=sal_media_description_find_stream(md,SalProtoRtpAvp,SalVideo);
593 secure_asd=sal_media_description_find_stream(md,SalProtoRtpSavp,SalAudio);
594 secure_vsd=sal_media_description_find_stream(md,SalProtoRtpSavp,SalVideo);
596 cp->has_video=is_video_active(secure_vsd);
597 if (secure_asd || asd==NULL)
598 cp->media_encryption=LinphoneMediaEncryptionSRTP;
600 cp->has_video=is_video_active(vsd);
609 * Returns the remote address associated to this call
612 const LinphoneAddress * linphone_call_get_remote_address(const LinphoneCall *call){
613 return call->dir==LinphoneCallIncoming ? call->log->from : call->log->to;
617 * Returns the remote address associated to this call as a string.
619 * The result string must be freed by user using ms_free().
621 char *linphone_call_get_remote_address_as_string(const LinphoneCall *call){
622 return linphone_address_as_string(linphone_call_get_remote_address(call));
626 * Retrieves the call's current state.
628 LinphoneCallState linphone_call_get_state(const LinphoneCall *call){
633 * Returns the reason for a call termination (either error or normal termination)
635 LinphoneReason linphone_call_get_reason(const LinphoneCall *call){
640 * Get the user_pointer in the LinphoneCall
642 * @ingroup call_control
644 * return user_pointer an opaque user pointer that can be retrieved at any time
646 void *linphone_call_get_user_pointer(LinphoneCall *call)
648 return call->user_pointer;
652 * Set the user_pointer in the LinphoneCall
654 * @ingroup call_control
656 * the user_pointer is an opaque user pointer that can be retrieved at any time in the LinphoneCall
658 void linphone_call_set_user_pointer(LinphoneCall *call, void *user_pointer)
660 call->user_pointer = user_pointer;
664 * Returns the call log associated to this call.
666 LinphoneCallLog *linphone_call_get_call_log(const LinphoneCall *call){
671 * Returns the refer-to uri (if the call was transfered).
673 const char *linphone_call_get_refer_to(const LinphoneCall *call){
674 return call->refer_to;
678 * Returns direction of the call (incoming or outgoing).
680 LinphoneCallDir linphone_call_get_dir(const LinphoneCall *call){
681 return call->log->dir;
685 * Returns the far end's user agent description string, if available.
687 const char *linphone_call_get_remote_user_agent(LinphoneCall *call){
689 return sal_op_get_remote_ua (call->op);
695 * Returns true if this calls has received a transfer that has not been
697 * Pending transfers are executed when this call is being paused or closed,
698 * locally or by remote endpoint.
699 * If the call is already paused while receiving the transfer request, the
700 * transfer immediately occurs.
702 bool_t linphone_call_has_transfer_pending(const LinphoneCall *call){
703 return call->refer_pending;
707 * Returns call's duration in seconds.
709 int linphone_call_get_duration(const LinphoneCall *call){
710 if (call->media_start_time==0) return 0;
711 return time(NULL)-call->media_start_time;
715 * Returns the call object this call is replacing, if any.
716 * Call replacement can occur during call transfers.
717 * By default, the core automatically terminates the replaced call and accept the new one.
718 * This function allows the application to know whether a new incoming call is a one that replaces another one.
720 LinphoneCall *linphone_call_get_replaced_call(LinphoneCall *call){
721 SalOp *op=sal_call_get_replaces(call->op);
723 return (LinphoneCall*)sal_op_get_user_pointer(op);
729 * Indicate whether camera input should be sent to remote end.
731 void linphone_call_enable_camera (LinphoneCall *call, bool_t enable){
733 if (call->videostream!=NULL && call->videostream->ticker!=NULL){
734 LinphoneCore *lc=call->core;
735 MSWebCam *nowebcam=get_nowebcam_device();
736 if (call->camera_active!=enable && lc->video_conf.device!=nowebcam){
737 video_stream_change_camera(call->videostream,
738 enable ? lc->video_conf.device : nowebcam);
741 call->camera_active=enable;
746 * Take a photo of currently received video and write it into a jpeg file.
748 int linphone_call_take_video_snapshot(LinphoneCall *call, const char *file){
750 if (call->videostream!=NULL && call->videostream->jpegwriter!=NULL){
751 return ms_filter_call_method(call->videostream->jpegwriter,MS_JPEG_WRITER_TAKE_SNAPSHOT,(void*)file);
753 ms_warning("Cannot take snapshot: no currently running video stream on this call.");
760 * Returns TRUE if camera pictures are sent to the remote party.
762 bool_t linphone_call_camera_enabled (const LinphoneCall *call){
763 return call->camera_active;
767 * Enable video stream.
769 void linphone_call_params_enable_video(LinphoneCallParams *cp, bool_t enabled){
770 cp->has_video=enabled;
773 const PayloadType* linphone_call_params_get_used_audio_codec(const LinphoneCallParams *cp) {
774 return cp->audio_codec;
777 const PayloadType* linphone_call_params_get_used_video_codec(const LinphoneCallParams *cp) {
778 return cp->video_codec;
782 * Returns whether video is enabled.
784 bool_t linphone_call_params_video_enabled(const LinphoneCallParams *cp){
785 return cp->has_video;
788 enum LinphoneMediaEncryption linphone_call_params_get_media_encryption(const LinphoneCallParams *cp) {
789 return cp->media_encryption;
792 void linphone_call_params_set_media_encryption(LinphoneCallParams *cp, enum LinphoneMediaEncryption e) {
793 cp->media_encryption = e;
798 * Enable sending of real early media (during outgoing calls).
800 void linphone_call_params_enable_early_media_sending(LinphoneCallParams *cp, bool_t enabled){
801 cp->real_early_media=enabled;
804 bool_t linphone_call_params_early_media_sending_enabled(const LinphoneCallParams *cp){
805 return cp->real_early_media;
809 * Returns true if the call is part of the locally managed conference.
811 bool_t linphone_call_params_local_conference_mode(const LinphoneCallParams *cp){
812 return cp->in_conference;
816 * Refine bandwidth settings for this call by setting a bandwidth limit for audio streams.
817 * As a consequence, codecs whose bitrates are not compatible with this limit won't be used.
819 void linphone_call_params_set_audio_bandwidth_limit(LinphoneCallParams *cp, int bandwidth){
820 cp->audio_bw=bandwidth;
825 * Request remote side to send us a Video Fast Update.
827 void linphone_call_send_vfu_request(LinphoneCall *call)
829 if (LinphoneCallStreamsRunning == linphone_call_get_state(call))
830 sal_call_send_vfu_request(call->op);
837 LinphoneCallParams * linphone_call_params_copy(const LinphoneCallParams *cp){
838 LinphoneCallParams *ncp=ms_new0(LinphoneCallParams,1);
839 memcpy(ncp,cp,sizeof(LinphoneCallParams));
846 void linphone_call_params_destroy(LinphoneCallParams *p){
855 #ifdef TEST_EXT_RENDERER
856 static void rendercb(void *data, const MSPicture *local, const MSPicture *remote){
857 ms_message("rendercb, local buffer=%p, remote buffer=%p",
858 local ? local->planes[0] : NULL, remote? remote->planes[0] : NULL);
863 static void video_stream_event_cb(void *user_pointer, const MSFilter *f, const unsigned int event_id, const void *args){
864 LinphoneCall* call = (LinphoneCall*) user_pointer;
865 ms_warning("In linphonecall.c: video_stream_event_cb");
867 case MS_VIDEO_DECODER_DECODING_ERRORS:
868 ms_warning("Case is MS_VIDEO_DECODER_DECODING_ERRORS");
869 linphone_call_send_vfu_request(call);
871 case MS_VIDEO_DECODER_FIRST_IMAGE_DECODED:
872 ms_message("First video frame decoded successfully");
873 if (call->nextVideoFrameDecoded._func != NULL)
874 call->nextVideoFrameDecoded._func(call, call->nextVideoFrameDecoded._user_data);
877 ms_warning("Unhandled event %i", event_id);
883 void linphone_call_set_next_video_frame_decoded_callback(LinphoneCall *call, LinphoneCallCbFunc cb, void* user_data) {
884 call->nextVideoFrameDecoded._func = cb;
885 call->nextVideoFrameDecoded._user_data = user_data;
887 ms_filter_call_method_noarg(call->videostream->decoder, MS_VIDEO_DECODER_RESET_FIRST_IMAGE_NOTIFICATION);
891 void linphone_call_init_media_streams(LinphoneCall *call){
892 LinphoneCore *lc=call->core;
893 SalMediaDescription *md=call->localdesc;
894 AudioStream *audiostream;
896 call->audiostream=audiostream=audio_stream_new(md->streams[0].port,linphone_core_ipv6_enabled(lc));
897 if (linphone_core_echo_limiter_enabled(lc)){
898 const char *type=lp_config_get_string(lc->config,"sound","el_type","mic");
899 if (strcasecmp(type,"mic")==0)
900 audio_stream_enable_echo_limiter(audiostream,ELControlMic);
901 else if (strcasecmp(type,"full")==0)
902 audio_stream_enable_echo_limiter(audiostream,ELControlFull);
904 audio_stream_enable_gain_control(audiostream,TRUE);
905 if (linphone_core_echo_cancellation_enabled(lc)){
906 int len,delay,framesize;
907 const char *statestr=lp_config_get_string(lc->config,"sound","ec_state",NULL);
908 len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
909 delay=lp_config_get_int(lc->config,"sound","ec_delay",0);
910 framesize=lp_config_get_int(lc->config,"sound","ec_framesize",0);
911 audio_stream_set_echo_canceller_params(audiostream,len,delay,framesize);
912 if (statestr && audiostream->ec){
913 ms_filter_call_method(audiostream->ec,MS_ECHO_CANCELLER_SET_STATE_STRING,(void*)statestr);
916 audio_stream_enable_automatic_gain_control(audiostream,linphone_core_agc_enabled(lc));
918 int enabled=lp_config_get_int(lc->config,"sound","noisegate",0);
919 audio_stream_enable_noise_gate(audiostream,enabled);
923 RtpTransport *artp=lc->rtptf->audio_rtp_func(lc->rtptf->audio_rtp_func_data, call->audio_port);
924 RtpTransport *artcp=lc->rtptf->audio_rtcp_func(lc->rtptf->audio_rtcp_func_data, call->audio_port+1);
925 rtp_session_set_transports(audiostream->session,artp,artcp);
928 call->audiostream_app_evq = ortp_ev_queue_new();
929 rtp_session_register_event_queue(audiostream->session,call->audiostream_app_evq);
933 if ((lc->video_conf.display || lc->video_conf.capture) && md->streams[1].port>0){
934 int video_recv_buf_size=lp_config_get_int(lc->config,"video","recv_buf_size",0);
935 call->videostream=video_stream_new(md->streams[1].port,linphone_core_ipv6_enabled(lc));
936 video_stream_enable_display_filter_auto_rotate(call->videostream, lp_config_get_int(lc->config,"video","display_filter_auto_rotate",0));
937 if (video_recv_buf_size>0) rtp_session_set_recv_buf_size(call->videostream->session,video_recv_buf_size);
939 if( lc->video_conf.displaytype != NULL)
940 video_stream_set_display_filter_name(call->videostream,lc->video_conf.displaytype);
941 video_stream_set_event_callback(call->videostream,video_stream_event_cb, call);
943 RtpTransport *vrtp=lc->rtptf->video_rtp_func(lc->rtptf->video_rtp_func_data, call->video_port);
944 RtpTransport *vrtcp=lc->rtptf->video_rtcp_func(lc->rtptf->video_rtcp_func_data, call->video_port+1);
945 rtp_session_set_transports(call->videostream->session,vrtp,vrtcp);
947 call->videostream_app_evq = ortp_ev_queue_new();
948 rtp_session_register_event_queue(call->videostream->session,call->videostream_app_evq);
949 #ifdef TEST_EXT_RENDERER
950 video_stream_set_render_callback(call->videostream,rendercb,NULL);
954 call->videostream=NULL;
959 static int dtmf_tab[16]={'0','1','2','3','4','5','6','7','8','9','*','#','A','B','C','D'};
961 static void linphone_core_dtmf_received(RtpSession* s, int dtmf, void* user_data){
962 LinphoneCore* lc = (LinphoneCore*)user_data;
963 if (dtmf<0 || dtmf>15){
964 ms_warning("Bad dtmf value %i",dtmf);
967 if (lc->vtable.dtmf_received != NULL)
968 lc->vtable.dtmf_received(lc, linphone_core_get_current_call(lc), dtmf_tab[dtmf]);
971 static void parametrize_equalizer(LinphoneCore *lc, AudioStream *st){
973 MSFilter *f=st->equalizer;
974 int enabled=lp_config_get_int(lc->config,"sound","eq_active",0);
975 const char *gains=lp_config_get_string(lc->config,"sound","eq_gains",NULL);
976 ms_filter_call_method(f,MS_EQUALIZER_SET_ACTIVE,&enabled);
982 if (sscanf(gains,"%f:%f:%f %n",&g.frequency,&g.gain,&g.width,&bytes)==3){
983 ms_message("Read equalizer gains: %f(~%f) --> %f",g.frequency,g.width,g.gain);
984 ms_filter_call_method(f,MS_EQUALIZER_SET_GAIN,&g);
993 void _post_configure_audio_stream(AudioStream *st, LinphoneCore *lc, bool_t muted){
994 float mic_gain=lp_config_get_float(lc->config,"sound","mic_gain",1);
997 float ng_thres=lp_config_get_float(lc->config,"sound","ng_thres",0.05);
998 float ng_floorgain=lp_config_get_float(lc->config,"sound","ng_floorgain",0);
999 int dc_removal=lp_config_get_int(lc->config,"sound","dc_removal",0);
1002 audio_stream_set_mic_gain(st,mic_gain);
1004 audio_stream_set_mic_gain(st,0);
1006 recv_gain = lc->sound_conf.soft_play_lev;
1007 if (recv_gain != 0) {
1008 linphone_core_set_playback_gain_db (lc,recv_gain);
1012 ms_filter_call_method(st->volsend,MS_VOLUME_REMOVE_DC,&dc_removal);
1013 float speed=lp_config_get_float(lc->config,"sound","el_speed",-1);
1014 thres=lp_config_get_float(lc->config,"sound","el_thres",-1);
1015 float force=lp_config_get_float(lc->config,"sound","el_force",-1);
1016 int sustain=lp_config_get_int(lc->config,"sound","el_sustain",-1);
1017 float transmit_thres=lp_config_get_float(lc->config,"sound","el_transmit_thres",-1);
1020 if (speed==-1) speed=0.03;
1021 if (force==-1) force=25;
1022 ms_filter_call_method(f,MS_VOLUME_SET_EA_SPEED,&speed);
1023 ms_filter_call_method(f,MS_VOLUME_SET_EA_FORCE,&force);
1025 ms_filter_call_method(f,MS_VOLUME_SET_EA_THRESHOLD,&thres);
1027 ms_filter_call_method(f,MS_VOLUME_SET_EA_SUSTAIN,&sustain);
1028 if (transmit_thres!=-1)
1029 ms_filter_call_method(f,MS_VOLUME_SET_EA_TRANSMIT_THRESHOLD,&transmit_thres);
1031 ms_filter_call_method(st->volsend,MS_VOLUME_SET_NOISE_GATE_THRESHOLD,&ng_thres);
1032 ms_filter_call_method(st->volsend,MS_VOLUME_SET_NOISE_GATE_FLOORGAIN,&ng_floorgain);
1035 /* parameters for a limited noise-gate effect, using echo limiter threshold */
1036 float floorgain = 1/mic_gain;
1037 int spk_agc=lp_config_get_int(lc->config,"sound","speaker_agc_enabled",0);
1038 ms_filter_call_method(st->volrecv, MS_VOLUME_ENABLE_AGC, &spk_agc);
1039 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_NOISE_GATE_THRESHOLD,&ng_thres);
1040 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_NOISE_GATE_FLOORGAIN,&floorgain);
1042 parametrize_equalizer(lc,st);
1045 static void post_configure_audio_streams(LinphoneCall*call){
1046 AudioStream *st=call->audiostream;
1047 LinphoneCore *lc=call->core;
1048 _post_configure_audio_stream(st,lc,call->audio_muted);
1049 if (lc->vtable.dtmf_received!=NULL){
1050 /* replace by our default action*/
1051 audio_stream_play_received_dtmfs(call->audiostream,FALSE);
1052 rtp_session_signal_connect(call->audiostream->session,"telephone-event",(RtpCallback)linphone_core_dtmf_received,(unsigned long)lc);
1056 static RtpProfile *make_profile(LinphoneCall *call, const SalMediaDescription *md, const SalStreamDescription *desc, int *used_pt){
1059 RtpProfile *prof=rtp_profile_new("Call profile");
1062 LinphoneCore *lc=call->core;
1066 for(elem=desc->payloads;elem!=NULL;elem=elem->next){
1067 PayloadType *pt=(PayloadType*)elem->data;
1070 if ((pt->flags & PAYLOAD_TYPE_FLAG_CAN_SEND) && first) {
1071 if (desc->type==SalAudio){
1072 linphone_core_update_allocated_audio_bandwidth_in_call(call,pt);
1073 up_ptime=linphone_core_get_upload_ptime(lc);
1075 *used_pt=payload_type_get_number(pt);
1078 if (desc->bandwidth>0) remote_bw=desc->bandwidth;
1079 else if (md->bandwidth>0) {
1080 /*case where b=AS is given globally, not per stream*/
1081 remote_bw=md->bandwidth;
1082 if (desc->type==SalVideo){
1083 remote_bw=get_video_bandwidth(remote_bw,call->audio_bw);
1087 if (desc->type==SalAudio){
1088 bw=get_min_bandwidth(call->audio_bw,remote_bw);
1089 }else bw=get_min_bandwidth(get_video_bandwidth(linphone_core_get_upload_bandwidth (lc),call->audio_bw),remote_bw);
1090 if (bw>0) pt->normal_bitrate=bw*1000;
1091 else if (desc->type==SalAudio){
1092 pt->normal_bitrate=-1;
1095 up_ptime=desc->ptime;
1099 snprintf(tmp,sizeof(tmp),"ptime=%i",up_ptime);
1100 payload_type_append_send_fmtp(pt,tmp);
1102 number=payload_type_get_number(pt);
1103 if (rtp_profile_get_payload(prof,number)!=NULL){
1104 ms_warning("A payload type with number %i already exists in profile !",number);
1106 rtp_profile_set_payload(prof,number,pt);
1112 static void setup_ring_player(LinphoneCore *lc, LinphoneCall *call){
1113 int pause_time=3000;
1114 audio_stream_play(call->audiostream,lc->sound_conf.ringback_tone);
1115 ms_filter_call_method(call->audiostream->soundread,MS_FILE_PLAYER_LOOP,&pause_time);
1118 #define LINPHONE_RTCP_SDES_TOOL "Linphone-" LINPHONE_VERSION
1120 static bool_t linphone_call_sound_resources_available(LinphoneCall *call){
1121 LinphoneCore *lc=call->core;
1122 LinphoneCall *current=linphone_core_get_current_call(lc);
1123 return !linphone_core_is_in_conference(lc) &&
1124 (current==NULL || current==call);
1126 static int find_crypto_index_from_tag(const SalSrtpCryptoAlgo crypto[],unsigned char tag) {
1128 for(i=0; i<SAL_CRYPTO_ALGO_MAX; i++) {
1129 if (crypto[i].tag == tag) {
1135 static void linphone_call_start_audio_stream(LinphoneCall *call, const char *cname, bool_t muted, bool_t send_ringbacktone, bool_t use_arc){
1136 LinphoneCore *lc=call->core;
1137 int jitt_comp=lc->rtp_conf.audio_jitt_comp;
1139 /* look for savp stream first */
1140 const SalStreamDescription *stream=sal_media_description_find_stream(call->resultdesc,
1141 SalProtoRtpSavp,SalAudio);
1142 /* no savp audio stream, use avp */
1144 stream=sal_media_description_find_stream(call->resultdesc,
1145 SalProtoRtpAvp,SalAudio);
1147 if (stream && stream->dir!=SalStreamInactive && stream->port!=0){
1148 MSSndCard *playcard=lc->sound_conf.lsd_card ?
1149 lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
1150 MSSndCard *captcard=lc->sound_conf.capt_sndcard;
1151 const char *playfile=lc->play_file;
1152 const char *recfile=lc->rec_file;
1153 call->audio_profile=make_profile(call,call->resultdesc,stream,&used_pt);
1157 call->current_params.audio_codec = rtp_profile_get_payload(call->audio_profile, used_pt);
1158 if (playcard==NULL) {
1159 ms_warning("No card defined for playback !");
1161 if (captcard==NULL) {
1162 ms_warning("No card defined for capture !");
1164 /*Replace soundcard filters by inactive file players or recorders
1165 when placed in recvonly or sendonly mode*/
1166 if (stream->port==0 || stream->dir==SalStreamRecvOnly){
1169 }else if (stream->dir==SalStreamSendOnly){
1173 /*And we will eventually play "playfile" if set by the user*/
1176 if (send_ringbacktone){
1178 playfile=NULL;/* it is setup later*/
1180 /*if playfile are supplied don't use soundcards*/
1181 if (lc->use_files) {
1185 if (call->params.in_conference){
1186 /* first create the graph without soundcard resources*/
1187 captcard=playcard=NULL;
1189 if (!linphone_call_sound_resources_available(call)){
1190 ms_message("Sound resources are used by another call, not using soundcard.");
1191 captcard=playcard=NULL;
1193 use_ec=captcard==NULL ? FALSE : linphone_core_echo_cancellation_enabled(lc);
1194 if (playcard && stream->max_rate>0) ms_snd_card_set_preferred_sample_rate(playcard, stream->max_rate);
1195 if (captcard && stream->max_rate>0) ms_snd_card_set_preferred_sample_rate(captcard, stream->max_rate);
1196 audio_stream_enable_adaptive_bitrate_control(call->audiostream,use_arc);
1197 audio_stream_start_full(
1199 call->audio_profile,
1200 stream->addr[0]!='\0' ? stream->addr : call->resultdesc->addr,
1202 linphone_core_rtcp_enabled(lc) ? (stream->port+1) : 0,
1211 post_configure_audio_streams(call);
1212 if (muted && !send_ringbacktone){
1213 audio_stream_set_mic_gain(call->audiostream,0);
1215 if (stream->dir==SalStreamSendOnly && playfile!=NULL){
1217 ms_filter_call_method(call->audiostream->soundread,MS_FILE_PLAYER_LOOP,&pause_time);
1219 if (send_ringbacktone){
1220 setup_ring_player(lc,call);
1222 audio_stream_set_rtcp_information(call->audiostream, cname, LINPHONE_RTCP_SDES_TOOL);
1224 /* valid local tags are > 0 */
1225 if (stream->proto == SalProtoRtpSavp) {
1226 const SalStreamDescription *local_st_desc=sal_media_description_find_stream(call->localdesc,
1227 SalProtoRtpSavp,SalAudio);
1228 int crypto_idx = find_crypto_index_from_tag(local_st_desc->crypto, stream->crypto_local_tag);
1230 if (crypto_idx >= 0) {
1231 audio_stream_enable_strp(
1233 stream->crypto[0].algo,
1234 local_st_desc->crypto[crypto_idx].master_key,
1235 stream->crypto[0].master_key);
1236 call->audiostream_encrypted=TRUE;
1238 ms_warning("Failed to find local crypto algo with tag: %d", stream->crypto_local_tag);
1239 call->audiostream_encrypted=FALSE;
1241 }else call->audiostream_encrypted=FALSE;
1242 if (call->params.in_conference){
1243 /*transform the graph to connect it to the conference filter */
1244 bool_t mute=stream->dir==SalStreamRecvOnly;
1245 linphone_call_add_to_conf(call, mute);
1247 call->current_params.in_conference=call->params.in_conference;
1248 }else ms_warning("No audio stream accepted ?");
1252 static void linphone_call_start_video_stream(LinphoneCall *call, const char *cname,bool_t all_inputs_muted){
1253 #ifdef VIDEO_ENABLED
1254 LinphoneCore *lc=call->core;
1256 /* look for savp stream first */
1257 const SalStreamDescription *vstream=sal_media_description_find_stream(call->resultdesc,
1258 SalProtoRtpSavp,SalVideo);
1259 /* no savp audio stream, use avp */
1261 vstream=sal_media_description_find_stream(call->resultdesc,
1262 SalProtoRtpAvp,SalVideo);
1264 /* shutdown preview */
1265 if (lc->previewstream!=NULL) {
1266 video_preview_stop(lc->previewstream);
1267 lc->previewstream=NULL;
1270 if (vstream!=NULL && vstream->dir!=SalStreamInactive && vstream->port!=0) {
1271 const char *addr=vstream->addr[0]!='\0' ? vstream->addr : call->resultdesc->addr;
1272 call->video_profile=make_profile(call,call->resultdesc,vstream,&used_pt);
1274 call->current_params.video_codec = rtp_profile_get_payload(call->video_profile, used_pt);
1275 VideoStreamDir dir=VideoStreamSendRecv;
1276 MSWebCam *cam=lc->video_conf.device;
1277 bool_t is_inactive=FALSE;
1279 call->current_params.has_video=TRUE;
1281 video_stream_enable_adaptive_bitrate_control(call->videostream,
1282 linphone_core_adaptive_rate_control_enabled(lc));
1283 video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
1284 video_stream_enable_self_view(call->videostream,lc->video_conf.selfview);
1285 if (lc->video_window_id!=0)
1286 video_stream_set_native_window_id(call->videostream,lc->video_window_id);
1287 if (lc->preview_window_id!=0)
1288 video_stream_set_native_preview_window_id (call->videostream,lc->preview_window_id);
1289 video_stream_use_preview_video_window (call->videostream,lc->use_preview_window);
1291 if (vstream->dir==SalStreamSendOnly && lc->video_conf.capture ){
1292 cam=get_nowebcam_device();
1293 dir=VideoStreamSendOnly;
1294 }else if (vstream->dir==SalStreamRecvOnly && lc->video_conf.display ){
1295 dir=VideoStreamRecvOnly;
1296 }else if (vstream->dir==SalStreamSendRecv){
1297 if (lc->video_conf.display && lc->video_conf.capture)
1298 dir=VideoStreamSendRecv;
1299 else if (lc->video_conf.display)
1300 dir=VideoStreamRecvOnly;
1302 dir=VideoStreamSendOnly;
1304 ms_warning("video stream is inactive.");
1305 /*either inactive or incompatible with local capabilities*/
1308 if (call->camera_active==FALSE || all_inputs_muted){
1309 cam=get_nowebcam_device();
1312 call->log->video_enabled = TRUE;
1313 video_stream_set_direction (call->videostream, dir);
1314 ms_message("%s lc rotation:%d\n", __FUNCTION__, lc->device_rotation);
1315 video_stream_set_device_rotation(call->videostream, lc->device_rotation);
1316 video_stream_start(call->videostream,
1317 call->video_profile, addr, vstream->port,
1318 linphone_core_rtcp_enabled(lc) ? (vstream->port+1) : 0,
1319 used_pt, lc->rtp_conf.audio_jitt_comp, cam);
1320 video_stream_set_rtcp_information(call->videostream, cname,LINPHONE_RTCP_SDES_TOOL);
1323 if (vstream->proto == SalProtoRtpSavp) {
1324 const SalStreamDescription *local_st_desc=sal_media_description_find_stream(call->localdesc,
1325 SalProtoRtpSavp,SalVideo);
1327 video_stream_enable_strp(
1329 vstream->crypto[0].algo,
1330 local_st_desc->crypto[0].master_key,
1331 vstream->crypto[0].master_key
1333 call->videostream_encrypted=TRUE;
1335 call->videostream_encrypted=FALSE;
1337 }else ms_warning("No video stream accepted.");
1339 ms_warning("No valid video stream defined.");
1344 void linphone_call_start_media_streams(LinphoneCall *call, bool_t all_inputs_muted, bool_t send_ringbacktone){
1345 LinphoneCore *lc=call->core;
1347 call->current_params.audio_codec = NULL;
1348 call->current_params.video_codec = NULL;
1350 LinphoneAddress *me=linphone_core_get_primary_contact_parsed(lc);
1352 bool_t use_arc=linphone_core_adaptive_rate_control_enabled(lc);
1353 #ifdef VIDEO_ENABLED
1354 const SalStreamDescription *vstream=sal_media_description_find_stream(call->resultdesc,
1355 SalProtoRtpAvp,SalVideo);
1358 if(call->audiostream == NULL)
1360 ms_fatal("start_media_stream() called without prior init !");
1363 cname=linphone_address_as_string_uri_only(me);
1365 #if defined(VIDEO_ENABLED)
1366 if (vstream!=NULL && vstream->dir!=SalStreamInactive && vstream->payloads!=NULL){
1367 /*when video is used, do not make adaptive rate control on audio, it is stupid.*/
1371 linphone_call_start_audio_stream(call,cname,all_inputs_muted,send_ringbacktone,use_arc);
1372 call->current_params.has_video=FALSE;
1373 if (call->videostream!=NULL) {
1374 linphone_call_start_video_stream(call,cname,all_inputs_muted);
1377 call->all_muted=all_inputs_muted;
1378 call->playing_ringbacktone=send_ringbacktone;
1379 call->up_bw=linphone_core_get_upload_bandwidth(lc);
1381 if (call->params.media_encryption==LinphoneMediaEncryptionZRTP) {
1382 OrtpZrtpParams params;
1383 /*will be set later when zrtp is activated*/
1384 call->current_params.media_encryption=LinphoneMediaEncryptionNone;
1386 params.zid_file=lc->zrtp_secrets_cache;
1387 audio_stream_enable_zrtp(call->audiostream,¶ms);
1388 }else if (call->params.media_encryption==LinphoneMediaEncryptionSRTP){
1389 call->current_params.media_encryption=linphone_call_are_all_streams_encrypted(call) ?
1390 LinphoneMediaEncryptionSRTP : LinphoneMediaEncryptionNone;
1393 /*also reflect the change if the "wished" params, in order to avoid to propose SAVP or video again
1394 * further in the call, for example during pause,resume, conferencing reINVITEs*/
1395 linphone_call_fix_call_parameters(call);
1400 linphone_address_destroy(me);
1403 static void linphone_call_log_fill_stats(LinphoneCallLog *log, AudioStream *st){
1404 audio_stream_get_local_rtp_stats (st,&log->local_stats);
1405 log->quality=audio_stream_get_average_quality_rating(st);
1408 void linphone_call_stop_media_streams(LinphoneCall *call){
1409 if (call->audiostream!=NULL) {
1410 rtp_session_unregister_event_queue(call->audiostream->session,call->audiostream_app_evq);
1411 ortp_ev_queue_flush(call->audiostream_app_evq);
1412 ortp_ev_queue_destroy(call->audiostream_app_evq);
1414 if (call->audiostream->ec){
1415 const char *state_str=NULL;
1416 ms_filter_call_method(call->audiostream->ec,MS_ECHO_CANCELLER_GET_STATE_STRING,&state_str);
1418 ms_message("Writing echo canceler state, %i bytes",(int)strlen(state_str));
1419 lp_config_set_string(call->core->config,"sound","ec_state",state_str);
1422 linphone_call_log_fill_stats (call->log,call->audiostream);
1423 if (call->endpoint){
1424 linphone_call_remove_from_conf(call);
1426 audio_stream_stop(call->audiostream);
1427 call->audiostream=NULL;
1431 #ifdef VIDEO_ENABLED
1432 if (call->videostream!=NULL){
1433 rtp_session_unregister_event_queue(call->videostream->session,call->videostream_app_evq);
1434 ortp_ev_queue_flush(call->videostream_app_evq);
1435 ortp_ev_queue_destroy(call->videostream_app_evq);
1436 video_stream_stop(call->videostream);
1437 call->videostream=NULL;
1440 ms_event_queue_skip(call->core->msevq);
1442 if (call->audio_profile){
1443 rtp_profile_clear_all(call->audio_profile);
1444 rtp_profile_destroy(call->audio_profile);
1445 call->audio_profile=NULL;
1447 if (call->video_profile){
1448 rtp_profile_clear_all(call->video_profile);
1449 rtp_profile_destroy(call->video_profile);
1450 call->video_profile=NULL;
1456 void linphone_call_enable_echo_cancellation(LinphoneCall *call, bool_t enable) {
1457 if (call!=NULL && call->audiostream!=NULL && call->audiostream->ec){
1458 bool_t bypass_mode = !enable;
1459 ms_filter_call_method(call->audiostream->ec,MS_ECHO_CANCELLER_SET_BYPASS_MODE,&bypass_mode);
1462 bool_t linphone_call_echo_cancellation_enabled(LinphoneCall *call) {
1463 if (call!=NULL && call->audiostream!=NULL && call->audiostream->ec){
1465 ms_filter_call_method(call->audiostream->ec,MS_ECHO_CANCELLER_GET_BYPASS_MODE,&val);
1468 return linphone_core_echo_cancellation_enabled(call->core);
1472 void linphone_call_enable_echo_limiter(LinphoneCall *call, bool_t val){
1473 if (call!=NULL && call->audiostream!=NULL ) {
1475 const char *type=lp_config_get_string(call->core->config,"sound","el_type","mic");
1476 if (strcasecmp(type,"mic")==0)
1477 audio_stream_enable_echo_limiter(call->audiostream,ELControlMic);
1478 else if (strcasecmp(type,"full")==0)
1479 audio_stream_enable_echo_limiter(call->audiostream,ELControlFull);
1481 audio_stream_enable_echo_limiter(call->audiostream,ELInactive);
1486 bool_t linphone_call_echo_limiter_enabled(const LinphoneCall *call){
1487 if (call!=NULL && call->audiostream!=NULL ){
1488 return call->audiostream->el_type !=ELInactive ;
1490 return linphone_core_echo_limiter_enabled(call->core);
1495 * @addtogroup call_misc
1500 * Returns the measured sound volume played locally (received from remote)
1501 * It is expressed in dbm0.
1503 float linphone_call_get_play_volume(LinphoneCall *call){
1504 AudioStream *st=call->audiostream;
1505 if (st && st->volrecv){
1507 ms_filter_call_method(st->volrecv,MS_VOLUME_GET,&vol);
1511 return LINPHONE_VOLUME_DB_LOWEST;
1515 * Returns the measured sound volume recorded locally (sent to remote)
1516 * It is expressed in dbm0.
1518 float linphone_call_get_record_volume(LinphoneCall *call){
1519 AudioStream *st=call->audiostream;
1520 if (st && st->volsend && !call->audio_muted && call->state==LinphoneCallStreamsRunning){
1522 ms_filter_call_method(st->volsend,MS_VOLUME_GET,&vol);
1526 return LINPHONE_VOLUME_DB_LOWEST;
1530 * Obtain real-time quality rating of the call
1532 * Based on local RTP statistics and RTCP feedback, a quality rating is computed and updated
1533 * during all the duration of the call. This function returns its value at the time of the function call.
1534 * It is expected that the rating is updated at least every 5 seconds or so.
1535 * The rating is a floating point number comprised between 0 and 5.
1537 * 4-5 = good quality <br>
1538 * 3-4 = average quality <br>
1539 * 2-3 = poor quality <br>
1540 * 1-2 = very poor quality <br>
1541 * 0-1 = can't be worse, mostly unusable <br>
1543 * @returns The function returns -1 if no quality measurement is available, for example if no
1544 * active audio stream exist. Otherwise it returns the quality rating.
1546 float linphone_call_get_current_quality(LinphoneCall *call){
1547 if (call->audiostream){
1548 return audio_stream_get_quality_rating(call->audiostream);
1554 * Returns call quality averaged over all the duration of the call.
1556 * See linphone_call_get_current_quality() for more details about quality measurement.
1558 float linphone_call_get_average_quality(LinphoneCall *call){
1559 if (call->audiostream){
1560 return audio_stream_get_average_quality_rating(call->audiostream);
1569 static void display_bandwidth(RtpSession *as, RtpSession *vs){
1570 ms_message("bandwidth usage: audio=[d=%.1f,u=%.1f] video=[d=%.1f,u=%.1f] kbit/sec",
1571 (as!=NULL) ? (rtp_session_compute_recv_bandwidth(as)*1e-3) : 0,
1572 (as!=NULL) ? (rtp_session_compute_send_bandwidth(as)*1e-3) : 0,
1573 (vs!=NULL) ? (rtp_session_compute_recv_bandwidth(vs)*1e-3) : 0,
1574 (vs!=NULL) ? (rtp_session_compute_send_bandwidth(vs)*1e-3) : 0);
1577 static void linphone_core_disconnected(LinphoneCore *lc, LinphoneCall *call){
1581 from = linphone_call_get_remote_address_as_string(call);
1584 snprintf(temp,sizeof(temp),"Remote end %s seems to have disconnected, the call is going to be closed.",from);
1589 snprintf(temp,sizeof(temp),"Remote end seems to have disconnected, the call is going to be closed.");
1591 if (lc->vtable.display_warning!=NULL)
1592 lc->vtable.display_warning(lc,temp);
1593 linphone_core_terminate_call(lc,call);
1596 void linphone_call_background_tasks(LinphoneCall *call, bool_t one_second_elapsed){
1597 int disconnect_timeout = linphone_core_get_nortp_timeout(call->core);
1598 bool_t disconnected=FALSE;
1600 if (call->state==LinphoneCallStreamsRunning && one_second_elapsed){
1601 RtpSession *as=NULL,*vs=NULL;
1602 float audio_load=0, video_load=0;
1603 if (call->audiostream!=NULL){
1604 as=call->audiostream->session;
1605 if (call->audiostream->ticker)
1606 audio_load=ms_ticker_get_average_load(call->audiostream->ticker);
1608 if (call->videostream!=NULL){
1609 if (call->videostream->ticker)
1610 video_load=ms_ticker_get_average_load(call->videostream->ticker);
1611 vs=call->videostream->session;
1613 display_bandwidth(as,vs);
1614 ms_message("Thread processing load: audio=%f\tvideo=%f",audio_load,video_load);
1616 #ifdef VIDEO_ENABLED
1617 if (call->videostream!=NULL) {
1618 // Beware that the application queue should not depend on treatments fron the
1619 // mediastreamer queue.
1620 video_stream_iterate(call->videostream);
1622 if (call->videostream_app_evq){
1624 while (NULL != (ev=ortp_ev_queue_get(call->videostream_app_evq))){
1625 OrtpEventType evt=ortp_event_get_type(ev);
1626 if (evt == ORTP_EVENT_ZRTP_ENCRYPTION_CHANGED){
1627 OrtpEventData *evd=ortp_event_get_data(ev);
1628 linphone_call_videostream_encryption_changed(call, evd->info.zrtp_stream_encrypted);
1630 ortp_event_destroy(ev);
1635 if (call->audiostream!=NULL) {
1636 // Beware that the application queue should not depend on treatments fron the
1637 // mediastreamer queue.
1638 audio_stream_iterate(call->audiostream);
1640 if (call->audiostream_app_evq){
1642 while (NULL != (ev=ortp_ev_queue_get(call->audiostream_app_evq))){
1643 OrtpEventType evt=ortp_event_get_type(ev);
1644 if (evt == ORTP_EVENT_ZRTP_ENCRYPTION_CHANGED){
1645 OrtpEventData *evd=ortp_event_get_data(ev);
1646 linphone_call_audiostream_encryption_changed(call, evd->info.zrtp_stream_encrypted);
1647 } else if (evt == ORTP_EVENT_ZRTP_SAS_READY) {
1648 OrtpEventData *evd=ortp_event_get_data(ev);
1649 linphone_call_audiostream_auth_token_ready(call, evd->info.zrtp_sas.sas, evd->info.zrtp_sas.verified);
1651 ortp_event_destroy(ev);
1655 if (call->state==LinphoneCallStreamsRunning && one_second_elapsed && call->audiostream!=NULL && disconnect_timeout>0 )
1656 disconnected=!audio_stream_alive(call->audiostream,disconnect_timeout);
1658 linphone_core_disconnected(call->core,call);
1661 void linphone_call_log_completed(LinphoneCall *call){
1662 LinphoneCore *lc=call->core;
1664 call->log->duration=time(NULL)-call->start_time;
1666 if (call->log->status==LinphoneCallMissed){
1669 info=ortp_strdup_printf(ngettext("You have missed %i call.",
1670 "You have missed %i calls.", lc->missed_calls),
1672 if (lc->vtable.display_status!=NULL)
1673 lc->vtable.display_status(lc,info);
1676 lc->call_logs=ms_list_prepend(lc->call_logs,(void *)call->log);
1677 if (ms_list_size(lc->call_logs)>lc->max_call_logs){
1678 MSList *elem,*prevelem=NULL;
1679 /*find the last element*/
1680 for(elem=lc->call_logs;elem!=NULL;elem=elem->next){
1684 linphone_call_log_destroy((LinphoneCallLog*)elem->data);
1685 lc->call_logs=ms_list_remove_link(lc->call_logs,elem);
1687 if (lc->vtable.call_log_updated!=NULL){
1688 lc->vtable.call_log_updated(lc,call->log);
1690 call_logs_write_to_config_file(lc);
1693 LinphoneCallState linphone_call_get_transfer_state(LinphoneCall *call) {
1694 return call->transfer_state;
1697 void linphone_call_set_transfer_state(LinphoneCall* call, LinphoneCallState state) {
1698 if (state != call->transfer_state) {
1699 LinphoneCore* lc = call->core;
1700 call->transfer_state = state;
1701 if (lc->vtable.transfer_state_changed)
1702 lc->vtable.transfer_state_changed(lc, call, state);