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"
40 static MSWebCam *get_nowebcam_device(){
41 return ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),"StaticImage: Static picture");
45 static bool_t generate_b64_crypto_key(int key_length, char* key_out) {
47 uint8_t* tmp = (uint8_t*) malloc(key_length);
48 if (ortp_crypto_get_random(tmp, key_length)!=0) {
49 ms_error("Failed to generate random key");
54 b64_size = b64_encode((const char*)tmp, key_length, NULL, 0);
56 ms_error("Failed to b64 encode key");
60 key_out[b64_size] = '\0';
61 b64_encode((const char*)tmp, key_length, key_out, 40);
66 LinphoneCore *linphone_call_get_core(const LinphoneCall *call){
70 const char* linphone_call_get_authentication_token(LinphoneCall *call){
71 return call->auth_token;
74 bool_t linphone_call_get_authentication_token_verified(LinphoneCall *call){
75 return call->auth_token_verified;
78 static bool_t linphone_call_are_all_streams_encrypted(LinphoneCall *call) {
79 // Check ZRTP encryption in audiostream
80 if (!call->audiostream_encrypted) {
85 // If video enabled, check ZRTP encryption in videostream
86 const LinphoneCallParams *params=linphone_call_get_current_params(call);
87 if (params->has_video && !call->videostream_encrypted) {
95 void propagate_encryption_changed(LinphoneCall *call){
96 LinphoneCore *lc=call->core;
97 if (!linphone_call_are_all_streams_encrypted(call)) {
98 ms_message("Some streams are not encrypted");
99 call->current_params.media_encryption=LinphoneMediaEncryptionNone;
100 if (lc->vtable.call_encryption_changed)
101 lc->vtable.call_encryption_changed(call->core, call, FALSE, call->auth_token);
103 ms_message("All streams are encrypted");
104 call->current_params.media_encryption=LinphoneMediaEncryptionZRTP;
105 if (lc->vtable.call_encryption_changed)
106 lc->vtable.call_encryption_changed(call->core, call, TRUE, call->auth_token);
111 static void linphone_call_videostream_encryption_changed(void *data, bool_t encrypted){
112 ms_message("Video stream is %s", encrypted ? "encrypted" : "not encrypted");
114 LinphoneCall *call = (LinphoneCall *)data;
115 call->videostream_encrypted=encrypted;
116 propagate_encryption_changed(call);
120 static void linphone_call_audiostream_encryption_changed(void *data, bool_t encrypted) {
121 char status[255]={0};
122 ms_message("Audio stream is %s ", encrypted ? "encrypted" : "not encrypted");
124 LinphoneCall *call = (LinphoneCall *)data;
125 call->audiostream_encrypted=encrypted;
127 if (encrypted && call->core->vtable.display_status != NULL) {
128 snprintf(status,sizeof(status)-1,_("Authentication token is %s"),call->auth_token);
129 call->core->vtable.display_status(call->core, status);
132 propagate_encryption_changed(call);
136 // Enable video encryption
137 const LinphoneCallParams *params=linphone_call_get_current_params(call);
138 if (params->has_video) {
139 ms_message("Trying to enable encryption on video stream");
140 OrtpZrtpParams params;
141 params.zid_file=NULL; //unused
142 video_stream_enable_zrtp(call->videostream,call->audiostream,¶ms);
148 static void linphone_call_audiostream_auth_token_ready(void *data, const char* auth_token, bool_t verified) {
149 LinphoneCall *call=(LinphoneCall *)data;
150 if (call->auth_token != NULL)
151 ms_free(call->auth_token);
153 call->auth_token=ms_strdup(auth_token);
154 call->auth_token_verified=verified;
156 ms_message("Authentication token is %s (%s)", auth_token, verified?"verified":"unverified");
159 void linphone_call_set_authentication_token_verified(LinphoneCall *call, bool_t verified){
160 if (call->audiostream==NULL){
161 ms_error("linphone_call_set_authentication_token_verified(): No audio stream");
163 if (call->audiostream->ortpZrtpContext==NULL){
164 ms_error("linphone_call_set_authentication_token_verified(): No zrtp context.");
166 if (!call->auth_token_verified && verified){
167 ortp_zrtp_sas_verified(call->audiostream->ortpZrtpContext);
168 }else if (call->auth_token_verified && !verified){
169 ortp_zrtp_sas_reset_verified(call->audiostream->ortpZrtpContext);
171 call->auth_token_verified=verified;
172 propagate_encryption_changed(call);
175 static MSList *make_codec_list(LinphoneCore *lc, const MSList *codecs, int bandwidth_limit){
178 for(it=codecs;it!=NULL;it=it->next){
179 PayloadType *pt=(PayloadType*)it->data;
180 if (pt->flags & PAYLOAD_TYPE_ENABLED){
181 if (bandwidth_limit>0 && !linphone_core_is_payload_type_usable_for_bandwidth(lc,pt,bandwidth_limit)){
182 ms_message("Codec %s/%i eliminated because of audio bandwidth constraint.",pt->mime_type,pt->clock_rate);
185 if (linphone_core_check_payload_type_usability(lc,pt)){
186 l=ms_list_append(l,payload_type_clone(pt));
193 static SalMediaDescription *_create_local_media_description(LinphoneCore *lc, LinphoneCall *call, unsigned int session_id, unsigned int session_ver){
197 const char *me=linphone_core_get_identity(lc);
198 LinphoneAddress *addr=linphone_address_new(me);
199 const char *username=linphone_address_get_username (addr);
200 SalMediaDescription *md=sal_media_description_new();
202 md->session_id=session_id;
203 md->session_ver=session_ver;
205 strncpy(md->addr,call->localip,sizeof(md->addr));
206 strncpy(md->username,username,sizeof(md->username));
207 md->bandwidth=linphone_core_get_download_bandwidth(lc);
209 /*set audio capabilities */
210 strncpy(md->streams[0].addr,call->localip,sizeof(md->streams[0].addr));
211 md->streams[0].port=call->audio_port;
212 md->streams[0].proto=(call->params.media_encryption == LinphoneMediaEncryptionSRTP) ?
213 SalProtoRtpSavp : SalProtoRtpAvp;
214 md->streams[0].type=SalAudio;
215 md->streams[0].ptime=lc->net_conf.down_ptime;
216 l=make_codec_list(lc,lc->codecs_conf.audio_codecs,call->params.audio_bw);
217 pt=payload_type_clone(rtp_profile_get_payload_from_mime(&av_profile,"telephone-event"));
218 l=ms_list_append(l,pt);
219 md->streams[0].payloads=l;
222 if (call->params.has_video){
224 md->streams[1].port=call->video_port;
225 md->streams[1].proto=md->streams[0].proto;
226 md->streams[1].type=SalVideo;
227 l=make_codec_list(lc,lc->codecs_conf.video_codecs,0);
228 md->streams[1].payloads=l;
231 for(i=0; i<md->nstreams; i++) {
232 if (md->streams[i].proto == SalProtoRtpSavp) {
233 md->streams[i].crypto[0].tag = 1;
234 md->streams[i].crypto[0].algo = AES_128_SHA1_80;
235 if (!generate_b64_crypto_key(30, md->streams[i].crypto[0].master_key))
236 md->streams[i].crypto[0].algo = 0;
237 md->streams[i].crypto[1].tag = 2;
238 md->streams[i].crypto[1].algo = AES_128_SHA1_32;
239 if (!generate_b64_crypto_key(30, md->streams[i].crypto[1].master_key))
240 md->streams[i].crypto[1].algo = 0;
241 md->streams[i].crypto[2].algo = 0;
245 linphone_address_destroy(addr);
249 void update_local_media_description(LinphoneCore *lc, LinphoneCall *call){
250 SalMediaDescription *md=call->localdesc;
252 call->localdesc = create_local_media_description(lc,call);
254 call->localdesc = _create_local_media_description(lc,call,md->session_id,md->session_ver+1);
255 sal_media_description_unref(md);
259 SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call){
260 unsigned int id=rand() & 0xfff;
261 return _create_local_media_description(lc,call,id,id);
264 static int find_port_offset(LinphoneCore *lc){
268 bool_t already_used=FALSE;
269 for(offset=0;offset<100;offset+=2){
270 audio_port=linphone_core_get_audio_port (lc)+offset;
272 for(elem=lc->calls;elem!=NULL;elem=elem->next){
273 LinphoneCall *call=(LinphoneCall*)elem->data;
274 if (call->audio_port==audio_port) {
279 if (!already_used) break;
282 ms_error("Could not find any free port !");
288 static void linphone_call_init_common(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
290 call->magic=linphone_call_magic;
292 call->state=LinphoneCallIdle;
293 call->start_time=time(NULL);
294 call->media_start_time=0;
295 call->log=linphone_call_log_new(call, from, to);
296 call->owns_call_log=TRUE;
297 linphone_core_notify_all_friends(call->core,LinphoneStatusOnThePhone);
298 port_offset=find_port_offset (call->core);
299 if (port_offset==-1) return;
300 call->audio_port=linphone_core_get_audio_port(call->core)+port_offset;
301 call->video_port=linphone_core_get_video_port(call->core)+port_offset;
305 static void discover_mtu(LinphoneCore *lc, const char *remote){
307 if (lc->net_conf.mtu==0 ){
308 /*attempt to discover mtu*/
309 mtu=ms_discover_mtu(remote);
312 ms_message("Discovered mtu is %i, RTP payload max size is %i",
313 mtu, ms_get_payload_max_size());
318 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params)
320 LinphoneCall *call=ms_new0(LinphoneCall,1);
321 call->dir=LinphoneCallOutgoing;
322 call->op=sal_op_new(lc->sal);
323 sal_op_set_user_pointer(call->op,call);
325 linphone_core_get_local_ip(lc,linphone_address_get_domain(to),call->localip);
326 linphone_call_init_common(call,from,to);
327 call->params=*params;
328 call->localdesc=create_local_media_description (lc,call);
329 call->camera_active=params->has_video;
330 if (linphone_core_get_firewall_policy(call->core)==LinphonePolicyUseStun)
331 linphone_core_run_stun_tests(call->core,call);
332 discover_mtu(lc,linphone_address_get_domain (to));
333 if (params->referer){
334 sal_call_set_referer(call->op,params->referer->op);
339 LinphoneCall * linphone_call_new_incoming(LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op){
340 LinphoneCall *call=ms_new0(LinphoneCall,1);
343 call->dir=LinphoneCallIncoming;
344 sal_op_set_user_pointer(op,call);
348 if (lc->sip_conf.ping_with_options){
349 /*the following sends an option request back to the caller so that
350 we get a chance to discover our nat'd address before answering.*/
351 call->ping_op=sal_op_new(lc->sal);
352 from_str=linphone_address_as_string_uri_only(from);
353 sal_op_set_route(call->ping_op,sal_op_get_network_origin(op));
354 sal_op_set_user_pointer(call->ping_op,call);
355 sal_ping(call->ping_op,linphone_core_find_best_identity(lc,from,NULL),from_str);
359 linphone_address_clean(from);
360 linphone_core_get_local_ip(lc,linphone_address_get_domain(from),call->localip);
361 linphone_call_init_common(call, from, to);
362 linphone_core_init_default_params(lc, &call->params);
363 call->params.has_video &= !!lc->video_policy.automatically_accept;
364 call->localdesc=create_local_media_description (lc,call);
365 call->camera_active=call->params.has_video;
366 if (linphone_core_get_firewall_policy(call->core)==LinphonePolicyUseStun)
367 linphone_core_run_stun_tests(call->core,call);
368 discover_mtu(lc,linphone_address_get_domain(from));
372 /* this function is called internally to get rid of a call.
373 It performs the following tasks:
374 - remove the call from the internal list of calls
375 - update the call logs accordingly
378 static void linphone_call_set_terminated(LinphoneCall *call){
379 LinphoneCore *lc=call->core;
381 linphone_core_update_allocated_audio_bandwidth(lc);
383 call->owns_call_log=FALSE;
384 linphone_call_log_completed(call);
387 if (call == lc->current_call){
388 ms_message("Resetting the current call");
389 lc->current_call=NULL;
392 if (linphone_core_del_call(lc,call) != 0){
393 ms_error("Could not remove the call from the list !!!");
396 if (ms_list_size(lc->calls)==0)
397 linphone_core_notify_all_friends(lc,lc->presence_mode);
399 linphone_core_conference_check_uninit(lc);
400 if (call->ringing_beep){
401 linphone_core_stop_dtmf(lc);
402 call->ringing_beep=FALSE;
406 void linphone_call_fix_call_parameters(LinphoneCall *call){
407 call->params.has_video=call->current_params.has_video;
408 call->params.media_encryption=call->current_params.media_encryption;
411 const char *linphone_call_state_to_string(LinphoneCallState cs){
413 case LinphoneCallIdle:
414 return "LinphoneCallIdle";
415 case LinphoneCallIncomingReceived:
416 return "LinphoneCallIncomingReceived";
417 case LinphoneCallOutgoingInit:
418 return "LinphoneCallOutgoingInit";
419 case LinphoneCallOutgoingProgress:
420 return "LinphoneCallOutgoingProgress";
421 case LinphoneCallOutgoingRinging:
422 return "LinphoneCallOutgoingRinging";
423 case LinphoneCallOutgoingEarlyMedia:
424 return "LinphoneCallOutgoingEarlyMedia";
425 case LinphoneCallConnected:
426 return "LinphoneCallConnected";
427 case LinphoneCallStreamsRunning:
428 return "LinphoneCallStreamsRunning";
429 case LinphoneCallPausing:
430 return "LinphoneCallPausing";
431 case LinphoneCallPaused:
432 return "LinphoneCallPaused";
433 case LinphoneCallResuming:
434 return "LinphoneCallResuming";
435 case LinphoneCallRefered:
436 return "LinphoneCallRefered";
437 case LinphoneCallError:
438 return "LinphoneCallError";
439 case LinphoneCallEnd:
440 return "LinphoneCallEnd";
441 case LinphoneCallPausedByRemote:
442 return "LinphoneCallPausedByRemote";
443 case LinphoneCallUpdatedByRemote:
444 return "LinphoneCallUpdatedByRemote";
445 case LinphoneCallIncomingEarlyMedia:
446 return "LinphoneCallIncomingEarlyMedia";
447 case LinphoneCallUpdated:
448 return "LinphoneCallUpdated";
449 case LinphoneCallReleased:
450 return "LinphoneCallReleased";
452 return "undefined state";
455 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message){
456 LinphoneCore *lc=call->core;
458 if (call->state!=cstate){
459 if (call->state==LinphoneCallEnd || call->state==LinphoneCallError){
460 if (cstate!=LinphoneCallReleased){
461 ms_warning("Spurious call state change from %s to %s, ignored.",linphone_call_state_to_string(call->state),
462 linphone_call_state_to_string(cstate));
466 ms_message("Call %p: moving from state %s to %s",call,linphone_call_state_to_string(call->state),
467 linphone_call_state_to_string(cstate));
468 if (cstate!=LinphoneCallRefered){
469 /*LinphoneCallRefered is rather an event, not a state.
470 Indeed it does not change the state of the call (still paused or running)*/
473 if (cstate==LinphoneCallEnd || cstate==LinphoneCallError){
474 if (call->reason==LinphoneReasonDeclined){
475 call->log->status=LinphoneCallDeclined;
477 linphone_call_set_terminated (call);
479 if (cstate == LinphoneCallConnected) {
480 call->log->status=LinphoneCallSuccess;
481 call->media_start_time=time(NULL);
484 if (lc->vtable.call_state_changed)
485 lc->vtable.call_state_changed(lc,call,cstate,message);
486 if (cstate==LinphoneCallReleased){
487 if (call->op!=NULL) {
488 /* so that we cannot have anymore upcalls for SAL
489 concerning this call*/
490 sal_op_release(call->op);
493 linphone_call_unref(call);
498 static void linphone_call_destroy(LinphoneCall *obj)
501 sal_op_release(obj->op);
504 if (obj->resultdesc!=NULL) {
505 sal_media_description_unref(obj->resultdesc);
506 obj->resultdesc=NULL;
508 if (obj->localdesc!=NULL) {
509 sal_media_description_unref(obj->localdesc);
513 sal_op_release(obj->ping_op);
516 ms_free(obj->refer_to);
518 if (obj->owns_call_log)
519 linphone_call_log_destroy(obj->log);
520 if (obj->auth_token) {
521 ms_free(obj->auth_token);
528 * @addtogroup call_control
533 * Increments the call 's reference count.
534 * An application that wishes to retain a pointer to call object
535 * must use this function to unsure the pointer remains
536 * valid. Once the application no more needs this pointer,
537 * it must call linphone_call_unref().
539 LinphoneCall * linphone_call_ref(LinphoneCall *obj){
545 * Decrements the call object reference count.
546 * See linphone_call_ref().
548 void linphone_call_unref(LinphoneCall *obj){
551 linphone_call_destroy(obj);
556 * Returns current parameters associated to the call.
558 const LinphoneCallParams * linphone_call_get_current_params(const LinphoneCall *call){
559 return &call->current_params;
562 static bool_t is_video_active(const SalStreamDescription *sd){
563 return sd->port!=0 && sd->dir!=SalStreamInactive;
567 * Returns call parameters proposed by remote.
569 * This is useful when receiving an incoming call, to know whether the remote party
570 * supports video, encryption or whatever.
572 const LinphoneCallParams * linphone_call_get_remote_params(LinphoneCall *call){
573 LinphoneCallParams *cp=&call->remote_params;
574 memset(cp,0,sizeof(*cp));
576 SalMediaDescription *md=sal_call_get_remote_media_description(call->op);
578 SalStreamDescription *asd,*vsd,*secure_asd,*secure_vsd;
580 asd=sal_media_description_find_stream(md,SalProtoRtpAvp,SalAudio);
581 vsd=sal_media_description_find_stream(md,SalProtoRtpAvp,SalVideo);
582 secure_asd=sal_media_description_find_stream(md,SalProtoRtpSavp,SalAudio);
583 secure_vsd=sal_media_description_find_stream(md,SalProtoRtpSavp,SalVideo);
585 cp->has_video=is_video_active(secure_vsd);
586 if (secure_asd || asd==NULL)
587 cp->media_encryption=LinphoneMediaEncryptionSRTP;
589 cp->has_video=is_video_active(vsd);
598 * Returns the remote address associated to this call
601 const LinphoneAddress * linphone_call_get_remote_address(const LinphoneCall *call){
602 return call->dir==LinphoneCallIncoming ? call->log->from : call->log->to;
606 * Returns the remote address associated to this call as a string.
608 * The result string must be freed by user using ms_free().
610 char *linphone_call_get_remote_address_as_string(const LinphoneCall *call){
611 return linphone_address_as_string(linphone_call_get_remote_address(call));
615 * Retrieves the call's current state.
617 LinphoneCallState linphone_call_get_state(const LinphoneCall *call){
622 * Returns the reason for a call termination (either error or normal termination)
624 LinphoneReason linphone_call_get_reason(const LinphoneCall *call){
629 * Get the user_pointer in the LinphoneCall
631 * @ingroup call_control
633 * return user_pointer an opaque user pointer that can be retrieved at any time
635 void *linphone_call_get_user_pointer(LinphoneCall *call)
637 return call->user_pointer;
641 * Set the user_pointer in the LinphoneCall
643 * @ingroup call_control
645 * the user_pointer is an opaque user pointer that can be retrieved at any time in the LinphoneCall
647 void linphone_call_set_user_pointer(LinphoneCall *call, void *user_pointer)
649 call->user_pointer = user_pointer;
653 * Returns the call log associated to this call.
655 LinphoneCallLog *linphone_call_get_call_log(const LinphoneCall *call){
660 * Returns the refer-to uri (if the call was transfered).
662 const char *linphone_call_get_refer_to(const LinphoneCall *call){
663 return call->refer_to;
667 * Returns direction of the call (incoming or outgoing).
669 LinphoneCallDir linphone_call_get_dir(const LinphoneCall *call){
670 return call->log->dir;
674 * Returns the far end's user agent description string, if available.
676 const char *linphone_call_get_remote_user_agent(LinphoneCall *call){
678 return sal_op_get_remote_ua (call->op);
684 * Returns true if this calls has received a transfer that has not been
686 * Pending transfers are executed when this call is being paused or closed,
687 * locally or by remote endpoint.
688 * If the call is already paused while receiving the transfer request, the
689 * transfer immediately occurs.
691 bool_t linphone_call_has_transfer_pending(const LinphoneCall *call){
692 return call->refer_pending;
696 * Returns call's duration in seconds.
698 int linphone_call_get_duration(const LinphoneCall *call){
699 if (call->media_start_time==0) return 0;
700 return time(NULL)-call->media_start_time;
704 * Returns the call object this call is replacing, if any.
705 * Call replacement can occur during call transfers.
706 * By default, the core automatically terminates the replaced call and accept the new one.
707 * This function allows the application to know whether a new incoming call is a one that replaces another one.
709 LinphoneCall *linphone_call_get_replaced_call(LinphoneCall *call){
710 SalOp *op=sal_call_get_replaces(call->op);
712 return (LinphoneCall*)sal_op_get_user_pointer(op);
718 * Indicate whether camera input should be sent to remote end.
720 void linphone_call_enable_camera (LinphoneCall *call, bool_t enable){
722 if (call->videostream!=NULL && call->videostream->ticker!=NULL){
723 LinphoneCore *lc=call->core;
724 MSWebCam *nowebcam=get_nowebcam_device();
725 if (call->camera_active!=enable && lc->video_conf.device!=nowebcam){
726 video_stream_change_camera(call->videostream,
727 enable ? lc->video_conf.device : nowebcam);
730 call->camera_active=enable;
735 * Take a photo of currently received video and write it into a jpeg file.
737 int linphone_call_take_video_snapshot(LinphoneCall *call, const char *file){
739 if (call->videostream!=NULL && call->videostream->jpegwriter!=NULL){
740 return ms_filter_call_method(call->videostream->jpegwriter,MS_JPEG_WRITER_TAKE_SNAPSHOT,(void*)file);
742 ms_warning("Cannot take snapshot: no currently running video stream on this call.");
749 * Returns TRUE if camera pictures are sent to the remote party.
751 bool_t linphone_call_camera_enabled (const LinphoneCall *call){
752 return call->camera_active;
756 * Enable video stream.
758 void linphone_call_params_enable_video(LinphoneCallParams *cp, bool_t enabled){
759 cp->has_video=enabled;
763 * Returns whether video is enabled.
765 bool_t linphone_call_params_video_enabled(const LinphoneCallParams *cp){
766 return cp->has_video;
769 enum LinphoneMediaEncryption linphone_call_params_get_media_encryption(const LinphoneCallParams *cp) {
770 return cp->media_encryption;
773 void linphone_call_params_set_media_encryption(LinphoneCallParams *cp, enum LinphoneMediaEncryption e) {
774 cp->media_encryption = e;
779 * Enable sending of real early media (during outgoing calls).
781 void linphone_call_params_enable_early_media_sending(LinphoneCallParams *cp, bool_t enabled){
782 cp->real_early_media=enabled;
785 bool_t linphone_call_params_early_media_sending_enabled(const LinphoneCallParams *cp){
786 return cp->real_early_media;
790 * Returns true if the call is part of the locally managed conference.
792 bool_t linphone_call_params_local_conference_mode(const LinphoneCallParams *cp){
793 return cp->in_conference;
797 * Refine bandwidth settings for this call by setting a bandwidth limit for audio streams.
798 * As a consequence, codecs whose bitrates are not compatible with this limit won't be used.
800 void linphone_call_params_set_audio_bandwidth_limit(LinphoneCallParams *cp, int bandwidth){
801 cp->audio_bw=bandwidth;
806 * Request remote side to send us a Video Fast Update.
808 void linphone_call_send_vfu_request(LinphoneCall *call)
810 if (LinphoneCallStreamsRunning == linphone_call_get_state(call))
811 sal_call_send_vfu_request(call->op);
818 LinphoneCallParams * linphone_call_params_copy(const LinphoneCallParams *cp){
819 LinphoneCallParams *ncp=ms_new0(LinphoneCallParams,1);
820 memcpy(ncp,cp,sizeof(LinphoneCallParams));
827 void linphone_call_params_destroy(LinphoneCallParams *p){
836 #ifdef TEST_EXT_RENDERER
837 static void rendercb(void *data, const MSPicture *local, const MSPicture *remote){
838 ms_message("rendercb, local buffer=%p, remote buffer=%p",
839 local ? local->planes[0] : NULL, remote? remote->planes[0] : NULL);
844 static void video_stream_event_cb(void *user_pointer, const MSFilter *f, const unsigned int event_id, const void *args){
845 ms_warning("In linphonecall.c: video_stream_event_cb");
847 case MS_VIDEO_DECODER_DECODING_ERRORS:
848 ms_warning("Case is MS_VIDEO_DECODER_DECODING_ERRORS");
849 linphone_call_send_vfu_request((LinphoneCall*) user_pointer);
852 ms_warning("Unhandled event %i", event_id);
858 void linphone_call_init_media_streams(LinphoneCall *call){
859 LinphoneCore *lc=call->core;
860 SalMediaDescription *md=call->localdesc;
861 AudioStream *audiostream;
863 call->audiostream=audiostream=audio_stream_new(md->streams[0].port,linphone_core_ipv6_enabled(lc));
864 if (linphone_core_echo_limiter_enabled(lc)){
865 const char *type=lp_config_get_string(lc->config,"sound","el_type","mic");
866 if (strcasecmp(type,"mic")==0)
867 audio_stream_enable_echo_limiter(audiostream,ELControlMic);
868 else if (strcasecmp(type,"full")==0)
869 audio_stream_enable_echo_limiter(audiostream,ELControlFull);
871 audio_stream_enable_gain_control(audiostream,TRUE);
872 if (linphone_core_echo_cancellation_enabled(lc)){
873 int len,delay,framesize;
874 const char *statestr=lp_config_get_string(lc->config,"sound","ec_state",NULL);
875 len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
876 delay=lp_config_get_int(lc->config,"sound","ec_delay",0);
877 framesize=lp_config_get_int(lc->config,"sound","ec_framesize",0);
878 audio_stream_set_echo_canceller_params(audiostream,len,delay,framesize);
879 if (statestr && audiostream->ec){
880 ms_filter_call_method(audiostream->ec,MS_ECHO_CANCELLER_SET_STATE_STRING,(void*)statestr);
883 audio_stream_enable_automatic_gain_control(audiostream,linphone_core_agc_enabled(lc));
885 int enabled=lp_config_get_int(lc->config,"sound","noisegate",0);
886 audio_stream_enable_noise_gate(audiostream,enabled);
890 RtpTransport *artp=lc->rtptf->audio_rtp_func(lc->rtptf->audio_rtp_func_data, call->audio_port);
891 RtpTransport *artcp=lc->rtptf->audio_rtcp_func(lc->rtptf->audio_rtcp_func_data, call->audio_port+1);
892 rtp_session_set_transports(audiostream->session,artp,artcp);
895 call->audiostream_app_evq = ortp_ev_queue_new();
896 rtp_session_register_event_queue(audiostream->session,call->audiostream_app_evq);
900 if ((lc->video_conf.display || lc->video_conf.capture) && md->streams[1].port>0){
901 int video_recv_buf_size=lp_config_get_int(lc->config,"video","recv_buf_size",0);
902 call->videostream=video_stream_new(md->streams[1].port,linphone_core_ipv6_enabled(lc));
903 video_stream_enable_display_filter_auto_rotate(call->videostream, lp_config_get_int(lc->config,"video","display_filter_auto_rotate",0));
904 if (video_recv_buf_size>0) rtp_session_set_recv_buf_size(call->videostream->session,video_recv_buf_size);
906 if( lc->video_conf.displaytype != NULL)
907 video_stream_set_display_filter_name(call->videostream,lc->video_conf.displaytype);
908 video_stream_set_event_callback(call->videostream,video_stream_event_cb, call);
910 RtpTransport *vrtp=lc->rtptf->video_rtp_func(lc->rtptf->video_rtp_func_data, call->video_port);
911 RtpTransport *vrtcp=lc->rtptf->video_rtcp_func(lc->rtptf->video_rtcp_func_data, call->video_port+1);
912 rtp_session_set_transports(call->videostream->session,vrtp,vrtcp);
914 call->videostream_app_evq = ortp_ev_queue_new();
915 rtp_session_register_event_queue(call->videostream->session,call->videostream_app_evq);
916 #ifdef TEST_EXT_RENDERER
917 video_stream_set_render_callback(call->videostream,rendercb,NULL);
921 call->videostream=NULL;
926 static int dtmf_tab[16]={'0','1','2','3','4','5','6','7','8','9','*','#','A','B','C','D'};
928 static void linphone_core_dtmf_received(RtpSession* s, int dtmf, void* user_data){
929 LinphoneCore* lc = (LinphoneCore*)user_data;
930 if (dtmf<0 || dtmf>15){
931 ms_warning("Bad dtmf value %i",dtmf);
934 if (lc->vtable.dtmf_received != NULL)
935 lc->vtable.dtmf_received(lc, linphone_core_get_current_call(lc), dtmf_tab[dtmf]);
938 static void parametrize_equalizer(LinphoneCore *lc, AudioStream *st){
940 MSFilter *f=st->equalizer;
941 int enabled=lp_config_get_int(lc->config,"sound","eq_active",0);
942 const char *gains=lp_config_get_string(lc->config,"sound","eq_gains",NULL);
943 ms_filter_call_method(f,MS_EQUALIZER_SET_ACTIVE,&enabled);
949 if (sscanf(gains,"%f:%f:%f %n",&g.frequency,&g.gain,&g.width,&bytes)==3){
950 ms_message("Read equalizer gains: %f(~%f) --> %f",g.frequency,g.width,g.gain);
951 ms_filter_call_method(f,MS_EQUALIZER_SET_GAIN,&g);
960 void _post_configure_audio_stream(AudioStream *st, LinphoneCore *lc, bool_t muted){
961 float mic_gain=lp_config_get_float(lc->config,"sound","mic_gain",1);
964 float ng_thres=lp_config_get_float(lc->config,"sound","ng_thres",0.05);
965 float ng_floorgain=lp_config_get_float(lc->config,"sound","ng_floorgain",0);
966 int dc_removal=lp_config_get_int(lc->config,"sound","dc_removal",0);
969 audio_stream_set_mic_gain(st,mic_gain);
971 audio_stream_set_mic_gain(st,0);
973 recv_gain = lc->sound_conf.soft_play_lev;
974 if (recv_gain != 0) {
975 linphone_core_set_playback_gain_db (lc,recv_gain);
979 ms_filter_call_method(st->volsend,MS_VOLUME_REMOVE_DC,&dc_removal);
980 float speed=lp_config_get_float(lc->config,"sound","el_speed",-1);
981 thres=lp_config_get_float(lc->config,"sound","el_thres",-1);
982 float force=lp_config_get_float(lc->config,"sound","el_force",-1);
983 int sustain=lp_config_get_int(lc->config,"sound","el_sustain",-1);
984 float transmit_thres=lp_config_get_float(lc->config,"sound","el_transmit_thres",-1);
987 if (speed==-1) speed=0.03;
988 if (force==-1) force=25;
989 ms_filter_call_method(f,MS_VOLUME_SET_EA_SPEED,&speed);
990 ms_filter_call_method(f,MS_VOLUME_SET_EA_FORCE,&force);
992 ms_filter_call_method(f,MS_VOLUME_SET_EA_THRESHOLD,&thres);
994 ms_filter_call_method(f,MS_VOLUME_SET_EA_SUSTAIN,&sustain);
995 if (transmit_thres!=-1)
996 ms_filter_call_method(f,MS_VOLUME_SET_EA_TRANSMIT_THRESHOLD,&transmit_thres);
998 ms_filter_call_method(st->volsend,MS_VOLUME_SET_NOISE_GATE_THRESHOLD,&ng_thres);
999 ms_filter_call_method(st->volsend,MS_VOLUME_SET_NOISE_GATE_FLOORGAIN,&ng_floorgain);
1002 /* parameters for a limited noise-gate effect, using echo limiter threshold */
1003 float floorgain = 1/mic_gain;
1004 int spk_agc=lp_config_get_int(lc->config,"sound","speaker_agc_enabled",0);
1005 ms_filter_call_method(st->volrecv, MS_VOLUME_ENABLE_AGC, &spk_agc);
1006 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_NOISE_GATE_THRESHOLD,&ng_thres);
1007 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_NOISE_GATE_FLOORGAIN,&floorgain);
1009 parametrize_equalizer(lc,st);
1012 static void post_configure_audio_streams(LinphoneCall*call){
1013 AudioStream *st=call->audiostream;
1014 LinphoneCore *lc=call->core;
1015 _post_configure_audio_stream(st,lc,call->audio_muted);
1016 if (lc->vtable.dtmf_received!=NULL){
1017 /* replace by our default action*/
1018 audio_stream_play_received_dtmfs(call->audiostream,FALSE);
1019 rtp_session_signal_connect(call->audiostream->session,"telephone-event",(RtpCallback)linphone_core_dtmf_received,(unsigned long)lc);
1023 static RtpProfile *make_profile(LinphoneCall *call, const SalMediaDescription *md, const SalStreamDescription *desc, int *used_pt){
1026 RtpProfile *prof=rtp_profile_new("Call profile");
1029 LinphoneCore *lc=call->core;
1033 for(elem=desc->payloads;elem!=NULL;elem=elem->next){
1034 PayloadType *pt=(PayloadType*)elem->data;
1037 if ((pt->flags & PAYLOAD_TYPE_FLAG_CAN_SEND) && first) {
1038 if (desc->type==SalAudio){
1039 linphone_core_update_allocated_audio_bandwidth_in_call(call,pt);
1040 up_ptime=linphone_core_get_upload_ptime(lc);
1042 *used_pt=payload_type_get_number(pt);
1045 if (desc->bandwidth>0) remote_bw=desc->bandwidth;
1046 else if (md->bandwidth>0) {
1047 /*case where b=AS is given globally, not per stream*/
1048 remote_bw=md->bandwidth;
1049 if (desc->type==SalVideo){
1050 remote_bw=get_video_bandwidth(remote_bw,call->audio_bw);
1054 if (desc->type==SalAudio){
1055 bw=get_min_bandwidth(call->audio_bw,remote_bw);
1056 }else bw=get_min_bandwidth(get_video_bandwidth(linphone_core_get_upload_bandwidth (lc),call->audio_bw),remote_bw);
1057 if (bw>0) pt->normal_bitrate=bw*1000;
1058 else if (desc->type==SalAudio){
1059 pt->normal_bitrate=-1;
1062 up_ptime=desc->ptime;
1066 snprintf(tmp,sizeof(tmp),"ptime=%i",up_ptime);
1067 payload_type_append_send_fmtp(pt,tmp);
1069 number=payload_type_get_number(pt);
1070 if (rtp_profile_get_payload(prof,number)!=NULL){
1071 ms_warning("A payload type with number %i already exists in profile !",number);
1073 rtp_profile_set_payload(prof,number,pt);
1079 static void setup_ring_player(LinphoneCore *lc, LinphoneCall *call){
1080 int pause_time=3000;
1081 audio_stream_play(call->audiostream,lc->sound_conf.ringback_tone);
1082 ms_filter_call_method(call->audiostream->soundread,MS_FILE_PLAYER_LOOP,&pause_time);
1085 #define LINPHONE_RTCP_SDES_TOOL "Linphone-" LINPHONE_VERSION
1087 static bool_t linphone_call_sound_resources_available(LinphoneCall *call){
1088 LinphoneCore *lc=call->core;
1089 LinphoneCall *current=linphone_core_get_current_call(lc);
1090 return !linphone_core_is_in_conference(lc) &&
1091 (current==NULL || current==call);
1093 static int find_crypto_index_from_tag(const SalSrtpCryptoAlgo crypto[],unsigned char tag) {
1095 for(i=0; i<SAL_CRYPTO_ALGO_MAX; i++) {
1096 if (crypto[i].tag == tag) {
1102 static void linphone_call_start_audio_stream(LinphoneCall *call, const char *cname, bool_t muted, bool_t send_ringbacktone, bool_t use_arc){
1103 LinphoneCore *lc=call->core;
1104 int jitt_comp=lc->rtp_conf.audio_jitt_comp;
1106 /* look for savp stream first */
1107 const SalStreamDescription *stream=sal_media_description_find_stream(call->resultdesc,
1108 SalProtoRtpSavp,SalAudio);
1109 /* no savp audio stream, use avp */
1111 stream=sal_media_description_find_stream(call->resultdesc,
1112 SalProtoRtpAvp,SalAudio);
1114 if (stream && stream->dir!=SalStreamInactive && stream->port!=0){
1115 MSSndCard *playcard=lc->sound_conf.lsd_card ?
1116 lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
1117 MSSndCard *captcard=lc->sound_conf.capt_sndcard;
1118 const char *playfile=lc->play_file;
1119 const char *recfile=lc->rec_file;
1120 call->audio_profile=make_profile(call,call->resultdesc,stream,&used_pt);
1124 if (playcard==NULL) {
1125 ms_warning("No card defined for playback !");
1127 if (captcard==NULL) {
1128 ms_warning("No card defined for capture !");
1130 /*Replace soundcard filters by inactive file players or recorders
1131 when placed in recvonly or sendonly mode*/
1132 if (stream->port==0 || stream->dir==SalStreamRecvOnly){
1135 }else if (stream->dir==SalStreamSendOnly){
1139 /*And we will eventually play "playfile" if set by the user*/
1142 if (send_ringbacktone){
1144 playfile=NULL;/* it is setup later*/
1146 /*if playfile are supplied don't use soundcards*/
1147 if (lc->use_files) {
1151 if (call->params.in_conference){
1152 /* first create the graph without soundcard resources*/
1153 captcard=playcard=NULL;
1155 if (!linphone_call_sound_resources_available(call)){
1156 ms_message("Sound resources are used by another call, not using soundcard.");
1157 captcard=playcard=NULL;
1159 use_ec=captcard==NULL ? FALSE : linphone_core_echo_cancellation_enabled(lc);
1161 audio_stream_enable_adaptive_bitrate_control(call->audiostream,use_arc);
1162 audio_stream_start_full(
1164 call->audio_profile,
1165 stream->addr[0]!='\0' ? stream->addr : call->resultdesc->addr,
1167 linphone_core_rtcp_enabled(lc) ? (stream->port+1) : 0,
1176 post_configure_audio_streams(call);
1177 if (muted && !send_ringbacktone){
1178 audio_stream_set_mic_gain(call->audiostream,0);
1180 if (stream->dir==SalStreamSendOnly && playfile!=NULL){
1182 ms_filter_call_method(call->audiostream->soundread,MS_FILE_PLAYER_LOOP,&pause_time);
1184 if (send_ringbacktone){
1185 setup_ring_player(lc,call);
1187 audio_stream_set_rtcp_information(call->audiostream, cname, LINPHONE_RTCP_SDES_TOOL);
1189 /* valid local tags are > 0 */
1190 if (stream->proto == SalProtoRtpSavp) {
1191 const SalStreamDescription *local_st_desc=sal_media_description_find_stream(call->localdesc,
1192 SalProtoRtpSavp,SalAudio);
1193 int crypto_idx = find_crypto_index_from_tag(local_st_desc->crypto, stream->crypto_local_tag);
1195 if (crypto_idx >= 0) {
1196 audio_stream_enable_strp(
1198 stream->crypto[0].algo,
1199 local_st_desc->crypto[crypto_idx].master_key,
1200 stream->crypto[0].master_key);
1201 call->audiostream_encrypted=TRUE;
1203 ms_warning("Failed to find local crypto algo with tag: %d", stream->crypto_local_tag);
1204 call->audiostream_encrypted=FALSE;
1206 }else call->audiostream_encrypted=FALSE;
1207 if (call->params.in_conference){
1208 /*transform the graph to connect it to the conference filter */
1209 bool_t mute=stream->dir==SalStreamRecvOnly;
1210 linphone_call_add_to_conf(call, mute);
1212 call->current_params.in_conference=call->params.in_conference;
1213 }else ms_warning("No audio stream accepted ?");
1217 static void linphone_call_start_video_stream(LinphoneCall *call, const char *cname,bool_t all_inputs_muted){
1218 #ifdef VIDEO_ENABLED
1219 LinphoneCore *lc=call->core;
1221 /* look for savp stream first */
1222 const SalStreamDescription *vstream=sal_media_description_find_stream(call->resultdesc,
1223 SalProtoRtpSavp,SalVideo);
1224 /* no savp audio stream, use avp */
1226 vstream=sal_media_description_find_stream(call->resultdesc,
1227 SalProtoRtpAvp,SalVideo);
1229 /* shutdown preview */
1230 if (lc->previewstream!=NULL) {
1231 video_preview_stop(lc->previewstream);
1232 lc->previewstream=NULL;
1235 if (vstream!=NULL && vstream->dir!=SalStreamInactive && vstream->port!=0) {
1236 const char *addr=vstream->addr[0]!='\0' ? vstream->addr : call->resultdesc->addr;
1237 call->video_profile=make_profile(call,call->resultdesc,vstream,&used_pt);
1239 VideoStreamDir dir=VideoStreamSendRecv;
1240 MSWebCam *cam=lc->video_conf.device;
1241 bool_t is_inactive=FALSE;
1243 call->current_params.has_video=TRUE;
1245 video_stream_enable_adaptive_bitrate_control(call->videostream,
1246 linphone_core_adaptive_rate_control_enabled(lc));
1247 video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
1248 video_stream_enable_self_view(call->videostream,lc->video_conf.selfview);
1249 if (lc->video_window_id!=0)
1250 video_stream_set_native_window_id(call->videostream,lc->video_window_id);
1251 if (lc->preview_window_id!=0)
1252 video_stream_set_native_preview_window_id (call->videostream,lc->preview_window_id);
1253 video_stream_use_preview_video_window (call->videostream,lc->use_preview_window);
1255 if (vstream->dir==SalStreamSendOnly && lc->video_conf.capture ){
1256 cam=get_nowebcam_device();
1257 dir=VideoStreamSendOnly;
1258 }else if (vstream->dir==SalStreamRecvOnly && lc->video_conf.display ){
1259 dir=VideoStreamRecvOnly;
1260 }else if (vstream->dir==SalStreamSendRecv){
1261 if (lc->video_conf.display && lc->video_conf.capture)
1262 dir=VideoStreamSendRecv;
1263 else if (lc->video_conf.display)
1264 dir=VideoStreamRecvOnly;
1266 dir=VideoStreamSendOnly;
1268 ms_warning("video stream is inactive.");
1269 /*either inactive or incompatible with local capabilities*/
1272 if (call->camera_active==FALSE || all_inputs_muted){
1273 cam=get_nowebcam_device();
1276 video_stream_set_direction (call->videostream, dir);
1277 ms_message("%s lc rotation:%d\n", __FUNCTION__, lc->device_rotation);
1278 video_stream_set_device_rotation(call->videostream, lc->device_rotation);
1279 video_stream_start(call->videostream,
1280 call->video_profile, addr, vstream->port,
1281 linphone_core_rtcp_enabled(lc) ? (vstream->port+1) : 0,
1282 used_pt, lc->rtp_conf.audio_jitt_comp, cam);
1283 video_stream_set_rtcp_information(call->videostream, cname,LINPHONE_RTCP_SDES_TOOL);
1286 if (vstream->proto == SalProtoRtpSavp) {
1287 const SalStreamDescription *local_st_desc=sal_media_description_find_stream(call->localdesc,
1288 SalProtoRtpSavp,SalVideo);
1290 video_stream_enable_strp(
1292 vstream->crypto[0].algo,
1293 local_st_desc->crypto[0].master_key,
1294 vstream->crypto[0].master_key
1296 call->videostream_encrypted=TRUE;
1298 call->videostream_encrypted=FALSE;
1300 }else ms_warning("No video stream accepted.");
1302 ms_warning("No valid video stream defined.");
1307 void linphone_call_start_media_streams(LinphoneCall *call, bool_t all_inputs_muted, bool_t send_ringbacktone){
1308 LinphoneCore *lc=call->core;
1309 LinphoneAddress *me=linphone_core_get_primary_contact_parsed(lc);
1311 bool_t use_arc=linphone_core_adaptive_rate_control_enabled(lc);
1312 #ifdef VIDEO_ENABLED
1313 const SalStreamDescription *vstream=sal_media_description_find_stream(call->resultdesc,
1314 SalProtoRtpAvp,SalVideo);
1317 if(call->audiostream == NULL)
1319 ms_fatal("start_media_stream() called without prior init !");
1322 cname=linphone_address_as_string_uri_only(me);
1324 #if defined(VIDEO_ENABLED)
1325 if (vstream!=NULL && vstream->dir!=SalStreamInactive && vstream->payloads!=NULL){
1326 /*when video is used, do not make adaptive rate control on audio, it is stupid.*/
1330 linphone_call_start_audio_stream(call,cname,all_inputs_muted,send_ringbacktone,use_arc);
1331 call->current_params.has_video=FALSE;
1332 if (call->videostream!=NULL) {
1333 linphone_call_start_video_stream(call,cname,all_inputs_muted);
1336 call->all_muted=all_inputs_muted;
1337 call->playing_ringbacktone=send_ringbacktone;
1338 call->up_bw=linphone_core_get_upload_bandwidth(lc);
1340 if (call->params.media_encryption==LinphoneMediaEncryptionZRTP) {
1341 OrtpZrtpParams params;
1342 /*will be set later when zrtp is activated*/
1343 call->current_params.media_encryption=LinphoneMediaEncryptionNone;
1345 params.zid_file=lc->zrtp_secrets_cache;
1346 audio_stream_enable_zrtp(call->audiostream,¶ms);
1347 }else if (call->params.media_encryption==LinphoneMediaEncryptionSRTP){
1348 call->current_params.media_encryption=linphone_call_are_all_streams_encrypted(call) ?
1349 LinphoneMediaEncryptionSRTP : LinphoneMediaEncryptionNone;
1352 /*also reflect the change if the "wished" params, in order to avoid to propose SAVP or video again
1353 * further in the call, for example during pause,resume, conferencing reINVITEs*/
1354 linphone_call_fix_call_parameters(call);
1359 linphone_address_destroy(me);
1362 static void linphone_call_log_fill_stats(LinphoneCallLog *log, AudioStream *st){
1363 audio_stream_get_local_rtp_stats (st,&log->local_stats);
1364 log->quality=audio_stream_get_average_quality_rating(st);
1367 void linphone_call_stop_media_streams(LinphoneCall *call){
1368 if (call->audiostream!=NULL) {
1369 rtp_session_unregister_event_queue(call->audiostream->session,call->audiostream_app_evq);
1370 ortp_ev_queue_flush(call->audiostream_app_evq);
1371 ortp_ev_queue_destroy(call->audiostream_app_evq);
1373 if (call->audiostream->ec){
1374 const char *state_str=NULL;
1375 ms_filter_call_method(call->audiostream->ec,MS_ECHO_CANCELLER_GET_STATE_STRING,&state_str);
1377 ms_message("Writing echo canceler state, %i bytes",(int)strlen(state_str));
1378 lp_config_set_string(call->core->config,"sound","ec_state",state_str);
1381 linphone_call_log_fill_stats (call->log,call->audiostream);
1382 if (call->endpoint){
1383 linphone_call_remove_from_conf(call);
1385 audio_stream_stop(call->audiostream);
1386 call->audiostream=NULL;
1390 #ifdef VIDEO_ENABLED
1391 if (call->videostream!=NULL){
1392 rtp_session_unregister_event_queue(call->videostream->session,call->videostream_app_evq);
1393 ortp_ev_queue_flush(call->videostream_app_evq);
1394 ortp_ev_queue_destroy(call->videostream_app_evq);
1395 video_stream_stop(call->videostream);
1396 call->videostream=NULL;
1399 ms_event_queue_skip(call->core->msevq);
1401 if (call->audio_profile){
1402 rtp_profile_clear_all(call->audio_profile);
1403 rtp_profile_destroy(call->audio_profile);
1404 call->audio_profile=NULL;
1406 if (call->video_profile){
1407 rtp_profile_clear_all(call->video_profile);
1408 rtp_profile_destroy(call->video_profile);
1409 call->video_profile=NULL;
1415 void linphone_call_enable_echo_cancellation(LinphoneCall *call, bool_t enable) {
1416 if (call!=NULL && call->audiostream!=NULL && call->audiostream->ec){
1417 bool_t bypass_mode = !enable;
1418 ms_filter_call_method(call->audiostream->ec,MS_ECHO_CANCELLER_SET_BYPASS_MODE,&bypass_mode);
1421 bool_t linphone_call_echo_cancellation_enabled(LinphoneCall *call) {
1422 if (call!=NULL && call->audiostream!=NULL && call->audiostream->ec){
1424 ms_filter_call_method(call->audiostream->ec,MS_ECHO_CANCELLER_GET_BYPASS_MODE,&val);
1427 return linphone_core_echo_cancellation_enabled(call->core);
1431 void linphone_call_enable_echo_limiter(LinphoneCall *call, bool_t val){
1432 if (call!=NULL && call->audiostream!=NULL ) {
1434 const char *type=lp_config_get_string(call->core->config,"sound","el_type","mic");
1435 if (strcasecmp(type,"mic")==0)
1436 audio_stream_enable_echo_limiter(call->audiostream,ELControlMic);
1437 else if (strcasecmp(type,"full")==0)
1438 audio_stream_enable_echo_limiter(call->audiostream,ELControlFull);
1440 audio_stream_enable_echo_limiter(call->audiostream,ELInactive);
1445 bool_t linphone_call_echo_limiter_enabled(const LinphoneCall *call){
1446 if (call!=NULL && call->audiostream!=NULL ){
1447 return call->audiostream->el_type !=ELInactive ;
1449 return linphone_core_echo_limiter_enabled(call->core);
1454 * @addtogroup call_misc
1459 * Returns the measured sound volume played locally (received from remote)
1460 * It is expressed in dbm0.
1462 float linphone_call_get_play_volume(LinphoneCall *call){
1463 AudioStream *st=call->audiostream;
1464 if (st && st->volrecv){
1466 ms_filter_call_method(st->volrecv,MS_VOLUME_GET,&vol);
1470 return LINPHONE_VOLUME_DB_LOWEST;
1474 * Returns the measured sound volume recorded locally (sent to remote)
1475 * It is expressed in dbm0.
1477 float linphone_call_get_record_volume(LinphoneCall *call){
1478 AudioStream *st=call->audiostream;
1479 if (st && st->volsend && !call->audio_muted && call->state==LinphoneCallStreamsRunning){
1481 ms_filter_call_method(st->volsend,MS_VOLUME_GET,&vol);
1485 return LINPHONE_VOLUME_DB_LOWEST;
1489 * Obtain real-time quality rating of the call
1491 * Based on local RTP statistics and RTCP feedback, a quality rating is computed and updated
1492 * during all the duration of the call. This function returns its value at the time of the function call.
1493 * It is expected that the rating is updated at least every 5 seconds or so.
1494 * The rating is a floating point number comprised between 0 and 5.
1496 * 4-5 = good quality <br>
1497 * 3-4 = average quality <br>
1498 * 2-3 = poor quality <br>
1499 * 1-2 = very poor quality <br>
1500 * 0-1 = can't be worse, mostly unusable <br>
1502 * @returns The function returns -1 if no quality measurement is available, for example if no
1503 * active audio stream exist. Otherwise it returns the quality rating.
1505 float linphone_call_get_current_quality(LinphoneCall *call){
1506 if (call->audiostream){
1507 return audio_stream_get_quality_rating(call->audiostream);
1513 * Returns call quality averaged over all the duration of the call.
1515 * See linphone_call_get_current_quality() for more details about quality measurement.
1517 float linphone_call_get_average_quality(LinphoneCall *call){
1518 if (call->audiostream){
1519 return audio_stream_get_average_quality_rating(call->audiostream);
1528 static void display_bandwidth(RtpSession *as, RtpSession *vs){
1529 ms_message("bandwidth usage: audio=[d=%.1f,u=%.1f] video=[d=%.1f,u=%.1f] kbit/sec",
1530 (as!=NULL) ? (rtp_session_compute_recv_bandwidth(as)*1e-3) : 0,
1531 (as!=NULL) ? (rtp_session_compute_send_bandwidth(as)*1e-3) : 0,
1532 (vs!=NULL) ? (rtp_session_compute_recv_bandwidth(vs)*1e-3) : 0,
1533 (vs!=NULL) ? (rtp_session_compute_send_bandwidth(vs)*1e-3) : 0);
1536 static void linphone_core_disconnected(LinphoneCore *lc, LinphoneCall *call){
1540 from = linphone_call_get_remote_address_as_string(call);
1543 snprintf(temp,sizeof(temp),"Remote end %s seems to have disconnected, the call is going to be closed.",from);
1548 snprintf(temp,sizeof(temp),"Remote end seems to have disconnected, the call is going to be closed.");
1550 if (lc->vtable.display_warning!=NULL)
1551 lc->vtable.display_warning(lc,temp);
1552 linphone_core_terminate_call(lc,call);
1555 void linphone_call_background_tasks(LinphoneCall *call, bool_t one_second_elapsed){
1556 int disconnect_timeout = linphone_core_get_nortp_timeout(call->core);
1557 bool_t disconnected=FALSE;
1559 if (call->state==LinphoneCallStreamsRunning && one_second_elapsed){
1560 RtpSession *as=NULL,*vs=NULL;
1561 float audio_load=0, video_load=0;
1562 if (call->audiostream!=NULL){
1563 as=call->audiostream->session;
1564 if (call->audiostream->ticker)
1565 audio_load=ms_ticker_get_average_load(call->audiostream->ticker);
1567 if (call->videostream!=NULL){
1568 if (call->videostream->ticker)
1569 video_load=ms_ticker_get_average_load(call->videostream->ticker);
1570 vs=call->videostream->session;
1572 display_bandwidth(as,vs);
1573 ms_message("Thread processing load: audio=%f\tvideo=%f",audio_load,video_load);
1575 #ifdef VIDEO_ENABLED
1576 if (call->videostream!=NULL) {
1577 // Beware that the application queue should not depend on treatments fron the
1578 // mediastreamer queue.
1579 video_stream_iterate(call->videostream);
1581 if (call->videostream_app_evq){
1583 while (NULL != (ev=ortp_ev_queue_get(call->videostream_app_evq))){
1584 OrtpEventType evt=ortp_event_get_type(ev);
1585 if (evt == ORTP_EVENT_ZRTP_ENCRYPTION_CHANGED){
1586 OrtpEventData *evd=ortp_event_get_data(ev);
1587 linphone_call_videostream_encryption_changed(call, evd->info.zrtp_stream_encrypted);
1589 ortp_event_destroy(ev);
1594 if (call->audiostream!=NULL) {
1595 // Beware that the application queue should not depend on treatments fron the
1596 // mediastreamer queue.
1597 audio_stream_iterate(call->audiostream);
1599 if (call->audiostream_app_evq){
1601 while (NULL != (ev=ortp_ev_queue_get(call->audiostream_app_evq))){
1602 OrtpEventType evt=ortp_event_get_type(ev);
1603 if (evt == ORTP_EVENT_ZRTP_ENCRYPTION_CHANGED){
1604 OrtpEventData *evd=ortp_event_get_data(ev);
1605 linphone_call_audiostream_encryption_changed(call, evd->info.zrtp_stream_encrypted);
1606 } else if (evt == ORTP_EVENT_ZRTP_SAS_READY) {
1607 OrtpEventData *evd=ortp_event_get_data(ev);
1608 linphone_call_audiostream_auth_token_ready(call, evd->info.zrtp_sas.sas, evd->info.zrtp_sas.verified);
1610 ortp_event_destroy(ev);
1614 if (call->state==LinphoneCallStreamsRunning && one_second_elapsed && call->audiostream!=NULL && disconnect_timeout>0 )
1615 disconnected=!audio_stream_alive(call->audiostream,disconnect_timeout);
1617 linphone_core_disconnected(call->core,call);
1620 void linphone_call_log_completed(LinphoneCall *call){
1621 LinphoneCore *lc=call->core;
1623 call->log->duration=time(NULL)-call->start_time;
1625 if (call->log->status==LinphoneCallMissed){
1628 info=ortp_strdup_printf(ngettext("You have missed %i call.",
1629 "You have missed %i calls.", lc->missed_calls),
1631 if (lc->vtable.display_status!=NULL)
1632 lc->vtable.display_status(lc,info);
1635 lc->call_logs=ms_list_prepend(lc->call_logs,(void *)call->log);
1636 if (ms_list_size(lc->call_logs)>lc->max_call_logs){
1637 MSList *elem,*prevelem=NULL;
1638 /*find the last element*/
1639 for(elem=lc->call_logs;elem!=NULL;elem=elem->next){
1643 linphone_call_log_destroy((LinphoneCallLog*)elem->data);
1644 lc->call_logs=ms_list_remove_link(lc->call_logs,elem);
1646 if (lc->vtable.call_log_updated!=NULL){
1647 lc->vtable.call_log_updated(lc,call->log);
1649 call_logs_write_to_config_file(lc);