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