sjero.net Git - linphone/blob - coreapi/linphonecall.c

   1
   2 /*
   3 linphone
   4 Copyright (C) 2010  Belledonne Communications SARL
   5  (simon.morlat@linphone.org)
   6
   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.
  11
  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.
  16
  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.
  20 */
  21 #ifdef WIN32
  22 #include <time.h>
  23 #endif
  24 #include "linphonecore.h"
  25 #include "sipsetup.h"
  26 #include "lpconfig.h"
  27 #include "private.h"
  28
  29
  30 #include "mediastreamer2/mediastream.h"
  31 #include "mediastreamer2/msvolume.h"
  32 #include "mediastreamer2/msequalizer.h"
  33 #include "mediastreamer2/msfileplayer.h"
  34 #include "mediastreamer2/msjpegwriter.h"
  35
  36 #ifdef VIDEO_ENABLED
  37 static MSWebCam *get_nowebcam_device(){
  38         return ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),"StaticImage: Static picture");
  39 }
  40 #endif
  41
  42
  43 static MSList *make_codec_list(LinphoneCore *lc, const MSList *codecs, int bandwidth_limit){
  44         MSList *l=NULL;
  45         const MSList *it;
  46         for(it=codecs;it!=NULL;it=it->next){
  47                 PayloadType *pt=(PayloadType*)it->data;
  48                 if (pt->flags & PAYLOAD_TYPE_ENABLED){
  49                         if (bandwidth_limit>0 && !linphone_core_is_payload_type_usable_for_bandwidth(lc,pt,bandwidth_limit)){
  50                                 ms_message("Codec %s/%i eliminated because of audio bandwidth constraint.",pt->mime_type,pt->clock_rate);
  51                                 continue;
  52                         }
  53                         if (linphone_core_check_payload_type_usability(lc,pt)){
  54                                 l=ms_list_append(l,payload_type_clone(pt));
  55                         }
  56                 }
  57         }
  58         return l;
  59 }
  60
  61 SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call){
  62         MSList *l;
  63         PayloadType *pt;
  64         const char *me=linphone_core_get_identity(lc);
  65         LinphoneAddress *addr=linphone_address_new(me);
  66         const char *username=linphone_address_get_username (addr);
  67         SalMediaDescription *md=sal_media_description_new();
  68
  69         md->nstreams=1;
  70         strncpy(md->addr,call->localip,sizeof(md->addr));
  71         strncpy(md->username,username,sizeof(md->username));
  72         md->bandwidth=linphone_core_get_download_bandwidth(lc);
  73
  74         /*set audio capabilities */
  75         strncpy(md->streams[0].addr,call->localip,sizeof(md->streams[0].addr));
  76         md->streams[0].port=call->audio_port;
  77         md->streams[0].proto=SalProtoRtpAvp;
  78         md->streams[0].type=SalAudio;
  79         md->streams[0].ptime=lc->net_conf.down_ptime;
  80         l=make_codec_list(lc,lc->codecs_conf.audio_codecs,call->params.audio_bw);
  81         pt=payload_type_clone(rtp_profile_get_payload_from_mime(&av_profile,"telephone-event"));
  82         l=ms_list_append(l,pt);
  83         md->streams[0].payloads=l;
  84
  85
  86         if (call->params.has_video){
  87                 md->nstreams++;
  88                 md->streams[1].port=call->video_port;
  89                 md->streams[1].proto=SalProtoRtpAvp;
  90                 md->streams[1].type=SalVideo;
  91                 l=make_codec_list(lc,lc->codecs_conf.video_codecs,0);
  92                 md->streams[1].payloads=l;
  93         }
  94         linphone_address_destroy(addr);
  95         return md;
  96 }
  97
  98 static int find_port_offset(LinphoneCore *lc){
  99         int offset;
 100         MSList *elem;
 101         int audio_port;
 102         bool_t already_used=FALSE;
 103         for(offset=0;offset<100;offset+=2){
 104                 audio_port=linphone_core_get_audio_port (lc)+offset;
 105                 already_used=FALSE;
 106                 for(elem=lc->calls;elem!=NULL;elem=elem->next){
 107                         LinphoneCall *call=(LinphoneCall*)elem->data;
 108                         if (call->audio_port==audio_port) {
 109                                 already_used=TRUE;
 110                                 break;
 111                         }
 112                 }
 113                 if (!already_used) break;
 114         }
 115         if (offset==100){
 116                 ms_error("Could not find any free port !");
 117                 return -1;
 118         }
 119         return offset;
 120 }
 121
 122 static void linphone_call_init_common(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 123         int port_offset;
 124         call->refcnt=1;
 125         call->state=LinphoneCallIdle;
 126         call->start_time=time(NULL);
 127         call->media_start_time=0;
 128         call->log=linphone_call_log_new(call, from, to);
 129         linphone_core_notify_all_friends(call->core,LinphoneStatusOnThePhone);
 130         port_offset=find_port_offset (call->core);
 131         if (port_offset==-1) return;
 132         call->audio_port=linphone_core_get_audio_port(call->core)+port_offset;
 133         call->video_port=linphone_core_get_video_port(call->core)+port_offset;
 134
 135 }
 136
 137 static void discover_mtu(LinphoneCore *lc, const char *remote){
 138         int mtu;
 139         if (lc->net_conf.mtu==0 ){
 140                 /*attempt to discover mtu*/
 141                 mtu=ms_discover_mtu(remote);
 142                 if (mtu>0){
 143                         ms_set_mtu(mtu);
 144                         ms_message("Discovered mtu is %i, RTP payload max size is %i",
 145                                 mtu, ms_get_payload_max_size());
 146                 }
 147         }
 148 }
 149
 150 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params)
 151 {
 152         LinphoneCall *call=ms_new0(LinphoneCall,1);
 153         call->dir=LinphoneCallOutgoing;
 154         call->op=sal_op_new(lc->sal);
 155         sal_op_set_user_pointer(call->op,call);
 156         call->core=lc;
 157         linphone_core_get_local_ip(lc,linphone_address_get_domain(to),call->localip);
 158         linphone_call_init_common(call,from,to);
 159         call->params=*params;
 160         call->localdesc=create_local_media_description (lc,call);
 161         call->camera_active=params->has_video;
 162         if (linphone_core_get_firewall_policy(call->core)==LinphonePolicyUseStun)
 163                 linphone_core_run_stun_tests(call->core,call);
 164         discover_mtu(lc,linphone_address_get_domain (to));
 165         if (params->referer){
 166                 sal_call_set_referer (call->op,params->referer->op);
 167         }
 168         return call;
 169 }
 170
 171 LinphoneCall * linphone_call_new_incoming(LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op){
 172         LinphoneCall *call=ms_new0(LinphoneCall,1);
 173         char *to_str;
 174         char *from_str;
 175
 176         call->dir=LinphoneCallIncoming;
 177         sal_op_set_user_pointer(op,call);
 178         call->op=op;
 179         call->core=lc;
 180
 181         if (lc->sip_conf.ping_with_options){
 182                 /*the following sends an option request back to the caller so that
 183                  we get a chance to discover our nat'd address before answering.*/
 184                 call->ping_op=sal_op_new(lc->sal);
 185                 to_str=linphone_address_as_string(to);
 186                 from_str=linphone_address_as_string(from);
 187                 sal_op_set_route(call->ping_op,sal_op_get_network_origin(call->op));
 188                 sal_op_set_user_pointer(call->ping_op,call);
 189                 sal_ping(call->ping_op,to_str,from_str);
 190                 ms_free(to_str);
 191                 ms_free(from_str);
 192         }
 193
 194         linphone_address_clean(from);
 195         linphone_core_get_local_ip(lc,linphone_address_get_domain(from),call->localip);
 196         linphone_call_init_common(call, from, to);
 197         call->params.has_video=linphone_core_video_enabled(lc);
 198         call->localdesc=create_local_media_description (lc,call);
 199         call->camera_active=call->params.has_video;
 200         if (linphone_core_get_firewall_policy(call->core)==LinphonePolicyUseStun)
 201                 linphone_core_run_stun_tests(call->core,call);
 202         discover_mtu(lc,linphone_address_get_domain(from));
 203         return call;
 204 }
 205
 206 /* this function is called internally to get rid of a call.
 207  It performs the following tasks:
 208  - remove the call from the internal list of calls
 209  - unref the LinphoneCall object
 210  - update the call logs accordingly
 211 */
 212
 213 static void linphone_call_set_terminated(LinphoneCall *call){
 214         LinphoneCallStatus status=LinphoneCallAborted;
 215         LinphoneCore *lc=call->core;
 216
 217         linphone_core_update_allocated_audio_bandwidth(lc);
 218         if (call->state==LinphoneCallEnd){
 219                 if (call->reason==LinphoneReasonDeclined){
 220                         status=LinphoneCallDeclined;
 221                 }
 222                 else status=LinphoneCallSuccess;
 223
 224         }
 225         linphone_call_log_completed(call->log,call, status);
 226
 227         if (call == lc->current_call){
 228                 ms_message("Resetting the current call");
 229                 lc->current_call=NULL;
 230         }
 231
 232         if (linphone_core_del_call(lc,call) != 0){
 233                 ms_error("Could not remove the call from the list !!!");
 234         }
 235
 236         if (ms_list_size(lc->calls)==0)
 237                 linphone_core_notify_all_friends(lc,lc->presence_mode);
 238
 239         if (call->op!=NULL) {
 240                 /* so that we cannot have anymore upcalls for SAL
 241                  concerning this call*/
 242                 sal_op_release(call->op);
 243                 call->op=NULL;
 244         }
 245         linphone_call_unref(call);
 246 }
 247
 248 const char *linphone_call_state_to_string(LinphoneCallState cs){
 249         switch (cs){
 250                 case LinphoneCallIdle:
 251                         return "LinphoneCallIdle";
 252                 case LinphoneCallIncomingReceived:
 253                         return "LinphoneCallIncomingReceived";
 254                 case LinphoneCallOutgoingInit:
 255                         return "LinphoneCallOutgoingInit";
 256                 case LinphoneCallOutgoingProgress:
 257                         return "LinphoneCallOutgoingProgress";
 258                 case LinphoneCallOutgoingRinging:
 259                         return "LinphoneCallOutgoingRinging";
 260                 case LinphoneCallOutgoingEarlyMedia:
 261                         return "LinphoneCallOutgoingEarlyMedia";
 262                 case LinphoneCallConnected:
 263                         return "LinphoneCallConnected";
 264                 case LinphoneCallStreamsRunning:
 265                         return "LinphoneCallStreamsRunning";
 266                 case LinphoneCallPausing:
 267                         return "LinphoneCallPausing";
 268                 case LinphoneCallPaused:
 269                         return "LinphoneCallPaused";
 270                 case LinphoneCallResuming:
 271                         return "LinphoneCallResuming";
 272                 case LinphoneCallRefered:
 273                         return "LinphoneCallRefered";
 274                 case LinphoneCallError:
 275                         return "LinphoneCallError";
 276                 case LinphoneCallEnd:
 277                         return "LinphoneCallEnd";
 278                 case LinphoneCallPausedByRemote:
 279                         return "LinphoneCallPausedByRemote";
 280                 case LinphoneCallUpdatedByRemote:
 281                         return "LinphoneCallUpdatedByRemote";
 282                 case LinphoneCallIncomingEarlyMedia:
 283                         return "LinphoneCallIncomingEarlyMedia";
 284                 case LinphoneCallUpdated:
 285                         return "LinphoneCallUpdated";
 286         }
 287         return "undefined state";
 288 }
 289
 290 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message){
 291         LinphoneCore *lc=call->core;
 292         bool_t finalize_call=FALSE;
 293         if (call->state!=cstate){
 294                 ms_message("Call %p: moving from state %s to %s",call,linphone_call_state_to_string(call->state),
 295                            linphone_call_state_to_string(cstate));
 296                 if (cstate!=LinphoneCallRefered){
 297                         /*LinphoneCallRefered is rather an event, not a state.
 298                          Indeed it does not change the state of the call (still paused or running)*/
 299                         call->state=cstate;
 300                 }
 301                 if (cstate==LinphoneCallEnd || cstate==LinphoneCallError){
 302                         finalize_call=TRUE;
 303                         linphone_call_ref(call);
 304                         linphone_call_set_terminated (call);
 305                 }
 306                 if (lc->vtable.call_state_changed)
 307                         lc->vtable.call_state_changed(lc,call,cstate,message);
 308                 if (finalize_call)
 309                         linphone_call_unref(call);
 310         }
 311 }
 312
 313 static void linphone_call_destroy(LinphoneCall *obj)
 314 {
 315         if (obj->op!=NULL) {
 316                 sal_op_release(obj->op);
 317                 obj->op=NULL;
 318         }
 319         if (obj->resultdesc!=NULL) {
 320                 sal_media_description_unref(obj->resultdesc);
 321                 obj->resultdesc=NULL;
 322         }
 323         if (obj->localdesc!=NULL) {
 324                 sal_media_description_unref(obj->localdesc);
 325                 obj->localdesc=NULL;
 326         }
 327         if (obj->ping_op) {
 328                 sal_op_release(obj->ping_op);
 329         }
 330         if (obj->refer_to){
 331                 ms_free(obj->refer_to);
 332         }
 333         ms_free(obj);
 334 }
 335
 336 /**
 337  * @addtogroup call_control
 338  * @{
 339 **/
 340
 341 /**
 342  * Increments the call 's reference count.
 343  * An application that wishes to retain a pointer to call object
 344  * must use this function to unsure the pointer remains
 345  * valid. Once the application no more needs this pointer,
 346  * it must call linphone_call_unref().
 347 **/
 348 void linphone_call_ref(LinphoneCall *obj){
 349         obj->refcnt++;
 350 }
 351
 352 /**
 353  * Decrements the call object reference count.
 354  * See linphone_call_ref().
 355 **/
 356 void linphone_call_unref(LinphoneCall *obj){
 357         obj->refcnt--;
 358         if (obj->refcnt==0){
 359                 linphone_call_destroy(obj);
 360         }
 361 }
 362
 363 /**
 364  * Returns current parameters associated to the call.
 365 **/
 366 const LinphoneCallParams * linphone_call_get_current_params(const LinphoneCall *call){
 367         return &call->current_params;
 368 }
 369
 370 /**
 371  * Returns the remote address associated to this call
 372  *
 373 **/
 374 const LinphoneAddress * linphone_call_get_remote_address(const LinphoneCall *call){
 375         return call->dir==LinphoneCallIncoming ? call->log->from : call->log->to;
 376 }
 377
 378 /**
 379  * Returns the remote address associated to this call as a string.
 380  *
 381  * The result string must be freed by user using ms_free().
 382 **/
 383 char *linphone_call_get_remote_address_as_string(const LinphoneCall *call){
 384         return linphone_address_as_string(linphone_call_get_remote_address(call));
 385 }
 386
 387 /**
 388  * Retrieves the call's current state.
 389 **/
 390 LinphoneCallState linphone_call_get_state(const LinphoneCall *call){
 391         return call->state;
 392 }
 393
 394 /**
 395  * Returns the reason for a call termination (either error or normal termination)
 396 **/
 397 LinphoneReason linphone_call_get_reason(const LinphoneCall *call){
 398         return call->reason;
 399 }
 400
 401 /**
 402  * Get the user_pointer in the LinphoneCall
 403  *
 404  * @ingroup call_control
 405  *
 406  * return user_pointer an opaque user pointer that can be retrieved at any time
 407 **/
 408 void *linphone_call_get_user_pointer(LinphoneCall *call)
 409 {
 410         return call->user_pointer;
 411 }
 412
 413 /**
 414  * Set the user_pointer in the LinphoneCall
 415  *
 416  * @ingroup call_control
 417  *
 418  * the user_pointer is an opaque user pointer that can be retrieved at any time in the LinphoneCall
 419 **/
 420 void linphone_call_set_user_pointer(LinphoneCall *call, void *user_pointer)
 421 {
 422         call->user_pointer = user_pointer;
 423 }
 424
 425 /**
 426  * Returns the call log associated to this call.
 427 **/
 428 LinphoneCallLog *linphone_call_get_call_log(const LinphoneCall *call){
 429         return call->log;
 430 }
 431
 432 /**
 433  * Returns the refer-to uri (if the call was transfered).
 434 **/
 435 const char *linphone_call_get_refer_to(const LinphoneCall *call){
 436         return call->refer_to;
 437 }
 438
 439 /**
 440  * Returns direction of the call (incoming or outgoing).
 441 **/
 442 LinphoneCallDir linphone_call_get_dir(const LinphoneCall *call){
 443         return call->log->dir;
 444 }
 445
 446 /**
 447  * Returns the far end's user agent description string, if available.
 448 **/
 449 const char *linphone_call_get_remote_user_agent(LinphoneCall *call){
 450         if (call->op){
 451                 return sal_op_get_remote_ua (call->op);
 452         }
 453         return NULL;
 454 }
 455
 456 /**
 457  * Returns true if this calls has received a transfer that has not been
 458  * executed yet.
 459  * Pending transfers are executed when this call is being paused or closed,
 460  * locally or by remote endpoint.
 461  * If the call is already paused while receiving the transfer request, the
 462  * transfer immediately occurs.
 463 **/
 464 bool_t linphone_call_has_transfer_pending(const LinphoneCall *call){
 465         return call->refer_pending;
 466 }
 467
 468 /**
 469  * Returns call's duration in seconds.
 470 **/
 471 int linphone_call_get_duration(const LinphoneCall *call){
 472         if (call->media_start_time==0) return 0;
 473         return time(NULL)-call->media_start_time;
 474 }
 475
 476 /**
 477  * Indicate whether camera input should be sent to remote end.
 478 **/
 479 void linphone_call_enable_camera (LinphoneCall *call, bool_t enable){
 480 #ifdef VIDEO_ENABLED
 481         if (call->videostream!=NULL && call->videostream->ticker!=NULL){
 482                 LinphoneCore *lc=call->core;
 483                 MSWebCam *nowebcam=get_nowebcam_device();
 484                 if (call->camera_active!=enable && lc->video_conf.device!=nowebcam){
 485                         video_stream_change_camera(call->videostream,
 486                                      enable ? lc->video_conf.device : nowebcam);
 487                 }
 488         }
 489         call->camera_active=enable;
 490 #endif
 491 }
 492
 493 /**
 494  * Take a photo of currently received video and write it into a jpeg file.
 495 **/
 496 int linphone_call_take_video_snapshot(LinphoneCall *call, const char *file){
 497 #ifdef VIDEO_ENABLED
 498         if (call->videostream!=NULL && call->videostream->jpegwriter!=NULL){
 499                 return ms_filter_call_method(call->videostream->jpegwriter,MS_JPEG_WRITER_TAKE_SNAPSHOT,(void*)file);
 500         }
 501         ms_warning("Cannot take snapshot: no currently running video stream on this call.");
 502         return -1;
 503 #endif
 504         return -1;
 505 }
 506
 507 /**
 508  *
 509 **/
 510 bool_t linphone_call_camera_enabled (const LinphoneCall *call){
 511         return call->camera_active;
 512 }
 513
 514 /**
 515  *
 516 **/
 517 void linphone_call_params_enable_video(LinphoneCallParams *cp, bool_t enabled){
 518         cp->has_video=enabled;
 519 }
 520
 521 /**
 522  *
 523 **/
 524 bool_t linphone_call_params_video_enabled(const LinphoneCallParams *cp){
 525         return cp->has_video;
 526 }
 527
 528 /**
 529  * Enable sending of real early media (during outgoing calls).
 530 **/
 531 void linphone_call_params_enable_early_media_sending(LinphoneCallParams *cp, bool_t enabled){
 532         cp->real_early_media=enabled;
 533 }
 534
 535 bool_t linphone_call_params_early_media_sending_enabled(const LinphoneCallParams *cp){
 536         return cp->real_early_media;
 537 }
 538
 539 /**
 540  * Refine bandwidth settings for this call by setting a bandwidth limit for audio streams.
 541  * As a consequence, codecs whose bitrates are not compatible with this limit won't be used.
 542 **/
 543 void linphone_call_params_set_audio_bandwidth_limit(LinphoneCallParams *cp, int bandwidth){
 544         cp->audio_bw=bandwidth;
 545 }
 546
 547 /**
 548  *
 549 **/
 550 LinphoneCallParams * linphone_call_params_copy(const LinphoneCallParams *cp){
 551         LinphoneCallParams *ncp=ms_new0(LinphoneCallParams,1);
 552         memcpy(ncp,cp,sizeof(LinphoneCallParams));
 553         return ncp;
 554 }
 555
 556 /**
 557  *
 558 **/
 559 void linphone_call_params_destroy(LinphoneCallParams *p){
 560         ms_free(p);
 561 }
 562
 563 /**
 564  * @}
 565 **/
 566
 567
 568 #ifdef TEST_EXT_RENDERER
 569 static void rendercb(void *data, const MSPicture *local, const MSPicture *remote){
 570         ms_message("rendercb, local buffer=%p, remote buffer=%p",
 571                    local ? local->planes[0] : NULL, remote? remote->planes[0] : NULL);
 572 }
 573 #endif
 574
 575 #ifdef VIDEO_ENABLED
 576 static void video_stream_event_cb(void *user_pointer, const MSFilter *f, const unsigned int event_id, const void *args){
 577         ms_warning("In linphonecall.c: video_stream_event_cb");
 578         switch (event_id) {
 579                 case MS_VIDEO_DECODER_DECODING_ERRORS:
 580                         ms_warning("CAse is MS_VIDEO_DECODER_DECODING_ERRORS");
 581                         linphone_call_send_vfu_request((LinphoneCall*) user_pointer);
 582                         break;
 583                 default:
 584                         ms_warning("Unhandled event %i", event_id);
 585                         break;
 586         }
 587 }
 588 #endif
 589
 590 void linphone_call_init_media_streams(LinphoneCall *call){
 591         LinphoneCore *lc=call->core;
 592         SalMediaDescription *md=call->localdesc;
 593         AudioStream *audiostream;
 594
 595         call->audiostream=audiostream=audio_stream_new(md->streams[0].port,linphone_core_ipv6_enabled(lc));
 596         if (linphone_core_echo_limiter_enabled(lc)){
 597                 const char *type=lp_config_get_string(lc->config,"sound","el_type","mic");
 598                 if (strcasecmp(type,"mic")==0)
 599                         audio_stream_enable_echo_limiter(audiostream,ELControlMic);
 600                 else if (strcasecmp(type,"full")==0)
 601                         audio_stream_enable_echo_limiter(audiostream,ELControlFull);
 602         }
 603         audio_stream_enable_gain_control(audiostream,TRUE);
 604         if (linphone_core_echo_cancellation_enabled(lc)){
 605                 int len,delay,framesize;
 606                 len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
 607                 delay=lp_config_get_int(lc->config,"sound","ec_delay",0);
 608                 framesize=lp_config_get_int(lc->config,"sound","ec_framesize",0);
 609                 audio_stream_set_echo_canceller_params(audiostream,len,delay,framesize);
 610         }
 611         audio_stream_enable_automatic_gain_control(audiostream,linphone_core_agc_enabled(lc));
 612         {
 613                 int enabled=lp_config_get_int(lc->config,"sound","noisegate",0);
 614                 audio_stream_enable_noise_gate(audiostream,enabled);
 615         }
 616         if (lc->a_rtp)
 617                 rtp_session_set_transports(audiostream->session,lc->a_rtp,lc->a_rtcp);
 618
 619 #ifdef VIDEO_ENABLED
 620         if ((lc->video_conf.display || lc->video_conf.capture) && md->streams[1].port>0){
 621                 call->videostream=video_stream_new(md->streams[1].port,linphone_core_ipv6_enabled(lc));
 622         if( lc->video_conf.displaytype != NULL)
 623                 video_stream_set_display_filter_name(call->videostream,lc->video_conf.displaytype);
 624         video_stream_set_event_callback(call->videostream,video_stream_event_cb, call);
 625 #ifdef TEST_EXT_RENDERER
 626                 video_stream_set_render_callback(call->videostream,rendercb,NULL);
 627 #endif
 628         }
 629 #else
 630         call->videostream=NULL;
 631 #endif
 632 }
 633
 634
 635 static int dtmf_tab[16]={'0','1','2','3','4','5','6','7','8','9','*','#','A','B','C','D'};
 636
 637 static void linphone_core_dtmf_received(RtpSession* s, int dtmf, void* user_data){
 638         LinphoneCore* lc = (LinphoneCore*)user_data;
 639         if (dtmf<0 || dtmf>15){
 640                 ms_warning("Bad dtmf value %i",dtmf);
 641                 return;
 642         }
 643         if (lc->vtable.dtmf_received != NULL)
 644                 lc->vtable.dtmf_received(lc, linphone_core_get_current_call(lc), dtmf_tab[dtmf]);
 645 }
 646
 647 static void parametrize_equalizer(LinphoneCore *lc, AudioStream *st){
 648         if (st->equalizer){
 649                 MSFilter *f=st->equalizer;
 650                 int enabled=lp_config_get_int(lc->config,"sound","eq_active",0);
 651                 const char *gains=lp_config_get_string(lc->config,"sound","eq_gains",NULL);
 652                 ms_filter_call_method(f,MS_EQUALIZER_SET_ACTIVE,&enabled);
 653                 if (enabled){
 654                         if (gains){
 655                                 do{
 656                                         int bytes;
 657                                         MSEqualizerGain g;
 658                                         if (sscanf(gains,"%f:%f:%f %n",&g.frequency,&g.gain,&g.width,&bytes)==3){
 659                                                 ms_message("Read equalizer gains: %f(~%f) --> %f",g.frequency,g.width,g.gain);
 660                                                 ms_filter_call_method(f,MS_EQUALIZER_SET_GAIN,&g);
 661                                                 gains+=bytes;
 662                                         }else break;
 663                                 }while(1);
 664                         }
 665                 }
 666         }
 667 }
 668
 669
 670 static void post_configure_audio_streams(LinphoneCall*call){
 671         AudioStream *st=call->audiostream;
 672         LinphoneCore *lc=call->core;
 673         float mic_gain=lp_config_get_float(lc->config,"sound","mic_gain",1);
 674         float thres = 0;
 675         float recv_gain;
 676         float ng_thres=lp_config_get_float(lc->config,"sound","ng_thres",0.05);
 677         float ng_floorgain=lp_config_get_float(lc->config,"sound","ng_floorgain",0);
 678         int dc_removal=lp_config_get_int(lc->config,"sound","dc_removal",0);
 679
 680         if (!call->audio_muted)
 681                 audio_stream_set_mic_gain(st,mic_gain);
 682         else
 683                 audio_stream_set_mic_gain(st,0);
 684
 685         recv_gain = lc->sound_conf.soft_play_lev;
 686         if (recv_gain != 0) {
 687                 linphone_core_set_playback_gain_db (lc,recv_gain);
 688         }
 689         if (st->volsend){
 690                 ms_filter_call_method(st->volsend,MS_VOLUME_REMOVE_DC,&dc_removal);
 691                 float speed=lp_config_get_float(lc->config,"sound","el_speed",-1);
 692                 thres=lp_config_get_float(lc->config,"sound","el_thres",-1);
 693                 float force=lp_config_get_float(lc->config,"sound","el_force",-1);
 694                 int sustain=lp_config_get_int(lc->config,"sound","el_sustain",-1);
 695                 float transmit_thres=lp_config_get_float(lc->config,"sound","el_transmit_thres",-1);
 696                 MSFilter *f=NULL;
 697                 f=st->volsend;
 698                 if (speed==-1) speed=0.03;
 699                 if (force==-1) force=25;
 700                 ms_filter_call_method(f,MS_VOLUME_SET_EA_SPEED,&speed);
 701                 ms_filter_call_method(f,MS_VOLUME_SET_EA_FORCE,&force);
 702                 if (thres!=-1)
 703                         ms_filter_call_method(f,MS_VOLUME_SET_EA_THRESHOLD,&thres);
 704                 if (sustain!=-1)
 705                         ms_filter_call_method(f,MS_VOLUME_SET_EA_SUSTAIN,&sustain);
 706                 if (transmit_thres!=-1)
 707                                 ms_filter_call_method(f,MS_VOLUME_SET_EA_TRANSMIT_THRESHOLD,&transmit_thres);
 708
 709                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_NOISE_GATE_THRESHOLD,&ng_thres);
 710                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_NOISE_GATE_FLOORGAIN,&ng_floorgain);
 711         }
 712         if (st->volrecv){
 713                 /* parameters for a limited noise-gate effect, using echo limiter threshold */
 714                 float floorgain = 1/mic_gain;
 715                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_NOISE_GATE_THRESHOLD,&thres);
 716                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_NOISE_GATE_FLOORGAIN,&floorgain);
 717         }
 718         parametrize_equalizer(lc,st);
 719         if (lc->vtable.dtmf_received!=NULL){
 720                 /* replace by our default action*/
 721                 audio_stream_play_received_dtmfs(call->audiostream,FALSE);
 722                 rtp_session_signal_connect(call->audiostream->session,"telephone-event",(RtpCallback)linphone_core_dtmf_received,(unsigned long)lc);
 723         }
 724 }
 725
 726
 727
 728
 729 static RtpProfile *make_profile(LinphoneCall *call, const SalMediaDescription *md, const SalStreamDescription *desc, int *used_pt){
 730         int bw;
 731         const MSList *elem;
 732         RtpProfile *prof=rtp_profile_new("Call profile");
 733         bool_t first=TRUE;
 734         int remote_bw=0;
 735         LinphoneCore *lc=call->core;
 736         *used_pt=-1;
 737
 738         for(elem=desc->payloads;elem!=NULL;elem=elem->next){
 739                 PayloadType *pt=(PayloadType*)elem->data;
 740                 int number;
 741
 742                 if (first) {
 743                         if (desc->type==SalAudio){
 744                                 linphone_core_update_allocated_audio_bandwidth_in_call(call,pt);
 745                         }
 746                         *used_pt=payload_type_get_number(pt);
 747                         first=FALSE;
 748                 }
 749                 if (desc->bandwidth>0) remote_bw=desc->bandwidth;
 750                 else if (md->bandwidth>0) {
 751                         /*case where b=AS is given globally, not per stream*/
 752                         remote_bw=md->bandwidth;
 753                         if (desc->type==SalVideo){
 754                                 remote_bw=get_video_bandwidth(remote_bw,call->audio_bw);
 755                         }
 756                 }
 757
 758                 if (desc->type==SalAudio){
 759                                 bw=get_min_bandwidth(call->audio_bw,remote_bw);
 760                 }else bw=get_min_bandwidth(get_video_bandwidth(linphone_core_get_upload_bandwidth (lc),call->audio_bw),remote_bw);
 761                 if (bw>0) pt->normal_bitrate=bw*1000;
 762                 else if (desc->type==SalAudio){
 763                         pt->normal_bitrate=-1;
 764                 }
 765                 if (desc->ptime>0){
 766                         char tmp[40];
 767                         snprintf(tmp,sizeof(tmp),"ptime=%i",desc->ptime);
 768                         payload_type_append_send_fmtp(pt,tmp);
 769                 }
 770                 number=payload_type_get_number(pt);
 771                 if (rtp_profile_get_payload(prof,number)!=NULL){
 772                         ms_warning("A payload type with number %i already exists in profile !",number);
 773                 }else
 774                         rtp_profile_set_payload(prof,number,pt);
 775         }
 776         return prof;
 777 }
 778
 779
 780 static void setup_ring_player(LinphoneCore *lc, LinphoneCall *call){
 781         int pause_time=3000;
 782         audio_stream_play(call->audiostream,lc->sound_conf.ringback_tone);
 783         ms_filter_call_method(call->audiostream->soundread,MS_FILE_PLAYER_LOOP,&pause_time);
 784 }
 785
 786
 787 void linphone_call_start_media_streams(LinphoneCall *call, bool_t all_inputs_muted, bool_t send_ringbacktone){
 788         LinphoneCore *lc=call->core;
 789         LinphoneAddress *me=linphone_core_get_primary_contact_parsed(lc);
 790         const char *tool="linphone-" LINPHONE_VERSION;
 791         char *cname;
 792         int used_pt=-1;
 793 #ifdef VIDEO_ENABLED
 794         const SalStreamDescription *vstream=sal_media_description_find_stream(call->resultdesc,
 795                                                         SalProtoRtpAvp,SalVideo);
 796 #endif
 797
 798         if(call->audiostream == NULL)
 799         {
 800                 ms_fatal("start_media_stream() called without prior init !");
 801                 return;
 802         }
 803         call->current_params = call->params;
 804         /* adjust rtp jitter compensation. It must be at least the latency of the sound card */
 805         int jitt_comp=MAX(lc->sound_conf.latency,lc->rtp_conf.audio_jitt_comp);
 806
 807         if (call->media_start_time==0) call->media_start_time=time(NULL);
 808
 809         cname=linphone_address_as_string_uri_only(me);
 810         {
 811                 const SalStreamDescription *stream=sal_media_description_find_stream(call->resultdesc,
 812                                                         SalProtoRtpAvp,SalAudio);
 813                 if (stream && stream->dir!=SalStreamInactive){
 814                         MSSndCard *playcard=lc->sound_conf.lsd_card ?
 815                                 lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
 816                         MSSndCard *captcard=lc->sound_conf.capt_sndcard;
 817                         const char *playfile=lc->play_file;
 818                         const char *recfile=lc->rec_file;
 819                         call->audio_profile=make_profile(call,call->resultdesc,stream,&used_pt);
 820                         bool_t use_ec;
 821
 822                         if (used_pt!=-1){
 823                                 if (playcard==NULL) {
 824                                         ms_warning("No card defined for playback !");
 825                                 }
 826                                 if (captcard==NULL) {
 827                                         ms_warning("No card defined for capture !");
 828                                 }
 829                                 /*Replace soundcard filters by inactive file players or recorders
 830                                  when placed in recvonly or sendonly mode*/
 831                                 if (stream->port==0 || stream->dir==SalStreamRecvOnly){
 832                                         captcard=NULL;
 833                                         playfile=NULL;
 834                                 }else if (stream->dir==SalStreamSendOnly){
 835                                         playcard=NULL;
 836                                         captcard=NULL;
 837                                         recfile=NULL;
 838                                         /*And we will eventually play "playfile" if set by the user*/
 839                                         /*playfile=NULL;*/
 840                                 }
 841                                 if (send_ringbacktone){
 842                                         captcard=NULL;
 843                                         playfile=NULL;/* it is setup later*/
 844                                 }
 845                                 /*if playfile are supplied don't use soundcards*/
 846                                 if (lc->use_files) {
 847                                         captcard=NULL;
 848                                         playcard=NULL;
 849                                 }
 850                                 use_ec=captcard==NULL ? FALSE : linphone_core_echo_cancellation_enabled(lc);
 851 #if defined(VIDEO_ENABLED) && defined(ANDROID)
 852                                 /*On android we have to disable the echo canceller to preserve CPU for video codecs */
 853                                 if (vstream && vstream->dir!=SalStreamInactive && vstream->payloads!=NULL)
 854                                         use_ec=FALSE;
 855 #endif
 856                                 audio_stream_start_full(
 857                                         call->audiostream,
 858                                         call->audio_profile,
 859                                         stream->addr[0]!='\0' ? stream->addr : call->resultdesc->addr,
 860                                         stream->port,
 861                                         stream->port+1,
 862                                         used_pt,
 863                                         jitt_comp,
 864                                         playfile,
 865                                         recfile,
 866                                         playcard,
 867                                         captcard,
 868                                         use_ec
 869                                         );
 870                                 post_configure_audio_streams(call);
 871                                 if (all_inputs_muted && !send_ringbacktone){
 872                                         audio_stream_set_mic_gain(call->audiostream,0);
 873                                 }
 874                                 if (stream->dir==SalStreamSendOnly && playfile!=NULL){
 875                                         int pause_time=500;
 876                                         ms_filter_call_method(call->audiostream->soundread,MS_FILE_PLAYER_LOOP,&pause_time);
 877                                 }
 878                                 if (send_ringbacktone){
 879                                         setup_ring_player(lc,call);
 880                                 }
 881                                 audio_stream_set_rtcp_information(call->audiostream, cname, tool);
 882                         }else ms_warning("No audio stream accepted ?");
 883                 }
 884         }
 885 #ifdef VIDEO_ENABLED
 886         {
 887
 888                 used_pt=-1;
 889                 /* shutdown preview */
 890                 if (lc->previewstream!=NULL) {
 891                         video_preview_stop(lc->previewstream);
 892                         lc->previewstream=NULL;
 893                 }
 894                 call->current_params.has_video=FALSE;
 895                 if (vstream && vstream->dir!=SalStreamInactive) {
 896                         const char *addr=vstream->addr[0]!='\0' ? vstream->addr : call->resultdesc->addr;
 897                         call->video_profile=make_profile(call,call->resultdesc,vstream,&used_pt);
 898                         if (used_pt!=-1){
 899                                 VideoStreamDir dir=VideoStreamSendRecv;
 900                                 MSWebCam *cam=lc->video_conf.device;
 901                                 bool_t is_inactive=FALSE;
 902
 903                                 call->current_params.has_video=TRUE;
 904
 905                                 video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
 906                                 video_stream_enable_self_view(call->videostream,lc->video_conf.selfview);
 907                                 if (lc->video_window_id!=0)
 908                                         video_stream_set_native_window_id(call->videostream,lc->video_window_id);
 909                                 if (lc->preview_window_id!=0)
 910                                         video_stream_set_native_preview_window_id (call->videostream,lc->preview_window_id);
 911                                 video_stream_use_preview_video_window (call->videostream,lc->use_preview_window);
 912
 913                                 if (vstream->dir==SalStreamSendOnly && lc->video_conf.capture ){
 914                                         cam=get_nowebcam_device();
 915                                         dir=VideoStreamSendOnly;
 916                                 }else if (vstream->dir==SalStreamRecvOnly && lc->video_conf.display ){
 917                                         dir=VideoStreamRecvOnly;
 918                                 }else if (vstream->dir==SalStreamSendRecv){
 919                                         if (lc->video_conf.display && lc->video_conf.capture)
 920                                                 dir=VideoStreamSendRecv;
 921                                         else if (lc->video_conf.display)
 922                                                 dir=VideoStreamRecvOnly;
 923                                         else
 924                                                 dir=VideoStreamSendOnly;
 925                                 }else{
 926                                         ms_warning("video stream is inactive.");
 927                                         /*either inactive or incompatible with local capabilities*/
 928                                         is_inactive=TRUE;
 929                                 }
 930                                 if (call->camera_active==FALSE || all_inputs_muted){
 931                                         cam=get_nowebcam_device();
 932                                 }
 933                                 if (!is_inactive){
 934                                         video_stream_set_direction (call->videostream, dir);
 935                                         video_stream_start(call->videostream,
 936                                                 call->video_profile, addr, vstream->port,
 937                                                 vstream->port+1,
 938                                                 used_pt, jitt_comp, cam);
 939                                         video_stream_set_rtcp_information(call->videostream, cname,tool);
 940                                 }
 941                         }else ms_warning("No video stream accepted.");
 942                 }else{
 943                         ms_warning("No valid video stream defined.");
 944                 }
 945         }
 946 #endif
 947         call->all_muted=all_inputs_muted;
 948         call->playing_ringbacktone=send_ringbacktone;
 949         call->up_bw=linphone_core_get_upload_bandwidth(lc);
 950
 951         goto end;
 952         end:
 953                 ms_free(cname);
 954                 linphone_address_destroy(me);
 955 }
 956
 957 static void linphone_call_log_fill_stats(LinphoneCallLog *log, AudioStream *st){
 958         audio_stream_get_local_rtp_stats (st,&log->local_stats);
 959 }
 960
 961 void linphone_call_stop_media_streams(LinphoneCall *call){
 962         if (call->audiostream!=NULL) {
 963                 linphone_call_log_fill_stats (call->log,call->audiostream);
 964                 audio_stream_stop(call->audiostream);
 965                 call->audiostream=NULL;
 966         }
 967 #ifdef VIDEO_ENABLED
 968         if (call->videostream!=NULL){
 969                 video_stream_stop(call->videostream);
 970                 call->videostream=NULL;
 971         }
 972
 973 #endif
 974         if (call->audio_profile){
 975                 rtp_profile_clear_all(call->audio_profile);
 976                 rtp_profile_destroy(call->audio_profile);
 977                 call->audio_profile=NULL;
 978         }
 979         if (call->video_profile){
 980                 rtp_profile_clear_all(call->video_profile);
 981                 rtp_profile_destroy(call->video_profile);
 982                 call->video_profile=NULL;
 983         }
 984 }
 985
 986 #ifdef VIDEO_ENABLED
 987 /**
 988  * Request remote side to send us VFU.
 989 **/
 990 void linphone_call_send_vfu_request(LinphoneCall *call)
 991 {
 992         if (LinphoneCallStreamsRunning == linphone_call_get_state(call))
 993                 sal_call_send_vfu_request(call->op);
 994 }
 995 #endif
 996
 997 void linphone_call_enable_echo_cancellation(LinphoneCall *call, bool_t enable) {
 998         if (call!=NULL && call->audiostream!=NULL && call->audiostream->ec){
 999                 bool_t bypass_mode = !enable;
1000                 ms_filter_call_method(call->audiostream->ec,MS_ECHO_CANCELLER_SET_BYPASS_MODE,&bypass_mode);
1001         }
1002 }
1003 bool_t linphone_call_echo_cancellation_enabled(LinphoneCall *call) {
1004         if (call!=NULL && call->audiostream!=NULL && call->audiostream->ec){
1005                 bool_t val;
1006                 ms_filter_call_method(call->audiostream->ec,MS_ECHO_CANCELLER_GET_BYPASS_MODE,&val);
1007                 return !val;
1008         } else {
1009                 return linphone_core_echo_cancellation_enabled(call->core);
1010         }
1011 }
1012
1013 void linphone_call_enable_echo_limiter(LinphoneCall *call, bool_t val){
1014         if (call!=NULL && call->audiostream!=NULL ) {
1015                 if (val) {
1016                 const char *type=lp_config_get_string(call->core->config,"sound","el_type","mic");
1017                 if (strcasecmp(type,"mic")==0)
1018                         audio_stream_enable_echo_limiter(call->audiostream,ELControlMic);
1019                 else if (strcasecmp(type,"full")==0)
1020                         audio_stream_enable_echo_limiter(call->audiostream,ELControlFull);
1021                 } else {
1022                         audio_stream_enable_echo_limiter(call->audiostream,ELInactive);
1023                 }
1024         }
1025 }
1026
1027 bool_t linphone_call_echo_limiter_enabled(const LinphoneCall *call){
1028         if (call!=NULL && call->audiostream!=NULL ){
1029                 return call->audiostream->el_type !=ELInactive ;
1030         } else {
1031                 return linphone_core_echo_limiter_enabled(call->core);
1032         }
1033 }
1034