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