port.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** PBX4Linux                                                                 **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** port                                                                      **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 /* HOW TO audio?
  13
  14 Audio flow has two ways:
  15
  16 * from channel to the upper layer
  17   -> sound from mISDN channel
  18   -> announcement from vbox channel
  19
  20 * from the upper layer to the channel
  21   -> sound from remote channel
  22
  23 Audio is required:
  24
  25   -> if local or remote channel is not mISDN
  26   -> if call is recorded (vbox)
  27
  28
  29 Functions:
  30
  31 * PmISDN::txfromup
  32   -> audio from upper layer is buffered for later transmission to channel
  33 * PmISDN::handler
  34   -> buffered audio from upper layer or tones are transmitted via system clock
  35 * mISDN_handler
  36   -> rx-data from port to record() and upper layer
  37   -> tx-data from port (dsp) to record()
  38 * VboxPort::handler
  39   -> streaming announcement to upper layer
  40   -> recording announcement
  41 * VboxPort::message_epoint
  42   -> recording audio message from upper layer
  43
  44
  45
  46 */
  47
  48 #include "main.h"
  49
  50 #define SHORT_MIN -32768
  51 #define SHORT_MAX 32767
  52
  53 class Port *port_first = NULL;
  54
  55 unsigned long port_serial = 1; /* must be 1, because 0== no port */
  56
  57
  58 /* free epointlist relation
  59  */
  60 void Port::free_epointlist(struct epoint_list *epointlist)
  61 {
  62         struct epoint_list *temp, **tempp;
  63
  64         temp = p_epointlist;
  65         tempp = &p_epointlist;
  66         while(temp)
  67         {
  68                 if (temp == epointlist)
  69                         break;
  70
  71                 tempp = &temp->next;
  72                 temp = temp->next;
  73         }
  74         if (temp == 0)
  75         {
  76                 PERROR("SOFTWARE ERROR: epointlist not in port's list.\n");
  77                 return;
  78         }
  79         /* detach */
  80         *tempp=temp->next;
  81
  82         /* free */
  83         PDEBUG(DEBUG_EPOINT, "PORT(%d) removed epoint from port\n", p_serial);
  84         FREE(temp, sizeof(struct epoint_list));
  85         ememuse--;
  86 }
  87
  88
  89 void Port::free_epointid(unsigned long epoint_id)
  90 {
  91         struct epoint_list *temp, **tempp;
  92
  93         temp = p_epointlist;
  94         tempp = &p_epointlist;
  95         while(temp)
  96         {
  97                 if (temp->epoint_id == epoint_id)
  98                         break;
  99
 100                 tempp = &temp->next;
 101                 temp = temp->next;
 102         }
 103         if (temp == 0)
 104         {
 105                 PERROR("epoint_id not in port's list.\n");
 106                 return;
 107         }
 108         /* detach */
 109         *tempp=temp->next;
 110
 111         /* free */
 112         PDEBUG(DEBUG_EPOINT, "PORT(%d) removed epoint from port\n", p_serial);
 113         FREE(temp, sizeof(struct epoint_list));
 114         ememuse--;
 115 }
 116
 117
 118 /* create new epointlist relation
 119  */
 120 struct epoint_list *Port::epointlist_new(unsigned long epoint_id)
 121 {
 122         struct epoint_list *epointlist, **epointlistpointer;
 123
 124         /* epointlist structure */
 125         epointlist = (struct epoint_list *)MALLOC(sizeof(struct epoint_list));
 126         if (!epointlist)
 127                 FATAL("No memory for epointlist\n");
 128         ememuse++;
 129         PDEBUG(DEBUG_EPOINT, "PORT(%d) allocating epoint_list.\n", p_serial);
 130
 131         /* add epoint_list to chain */
 132         epointlist->next = NULL;
 133         epointlistpointer = &p_epointlist;
 134         while(*epointlistpointer)
 135                 epointlistpointer = &((*epointlistpointer)->next);
 136         *epointlistpointer = epointlist;
 137
 138         /* link to epoint */
 139         epointlist->epoint_id = epoint_id;
 140         epointlist->active = 1;
 141
 142         return(epointlist);
 143 }
 144
 145
 146 /*
 147  * port constructor
 148  */
 149 Port::Port(int type, char *portname, struct port_settings *settings)
 150 {
 151         class Port *temp, **tempp;
 152
 153         PDEBUG(DEBUG_PORT, "new port of type %d, name '%s'\n", type, portname);
 154
 155         /* initialize object */
 156         if (settings)
 157                 memcpy(&p_settings, settings, sizeof(struct port_settings));
 158         else
 159         {
 160                 memset(&p_settings, 0, sizeof(p_settings));
 161                 SCPY(p_settings.tones_dir, options.tones_dir);
 162         }
 163         SCPY(p_name, portname);
 164         SCPY(p_tone_dir, p_settings.tones_dir); // just to be sure
 165         p_type = type;
 166         p_serial = port_serial++;
 167         p_tone_fh = -1;
 168         p_tone_fetched = NULL;
 169         p_tone_name[0] = '\0';
 170         p_state = PORT_STATE_IDLE;
 171         p_epointlist = NULL;
 172         memset(&p_callerinfo, 0, sizeof(p_callerinfo));
 173         memset(&p_dialinginfo, 0, sizeof(p_dialinginfo));
 174         memset(&p_connectinfo, 0, sizeof(p_connectinfo));
 175         memset(&p_redirinfo, 0, sizeof(p_redirinfo));
 176         memset(&p_capainfo, 0, sizeof(p_capainfo));
 177         p_echotest = 0;
 178
 179         /* call recording */
 180         p_record = NULL;
 181         p_record_type = 0;
 182         p_record_length = 0;
 183         p_record_skip = 0;
 184         p_record_filename[0] = '\0';
 185         p_record_buffer_readp = 0;
 186         p_record_buffer_writep = 0;
 187         p_record_buffer_dir = 0;
 188
 189         /* append port to chain */
 190         next = NULL;
 191         temp = port_first;
 192         tempp = &port_first;
 193         while(temp)
 194         {
 195                 tempp = &temp->next;
 196                 temp = temp->next;
 197         }
 198         *tempp = this;
 199
 200         classuse++;
 201 }
 202
 203
 204 /*
 205  * port destructor
 206  */
 207 Port::~Port(void)
 208 {
 209         class Port *temp, **tempp;
 210         struct lcr_msg *message;
 211
 212         if (p_record)
 213                 close_record(0, 0);
 214
 215         classuse--;
 216
 217         PDEBUG(DEBUG_PORT, "removing port of type %d, name '%s'\n", p_type, p_name);
 218
 219         /* disconnect port from endpoint */
 220         while(p_epointlist)
 221         {
 222                 /* send disconnect */
 223                 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 224                 message->param.disconnectinfo.cause = 16;
 225                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 226                 message_put(message);
 227                 /* remove endpoint */
 228                 free_epointlist(p_epointlist);
 229         }
 230
 231         /* remove port from chain */
 232         temp=port_first;
 233         tempp=&port_first;
 234         while(temp)
 235         {
 236                 if (temp == this)
 237                         break;
 238                 tempp = &temp->next;
 239                 temp = temp->next;
 240         }
 241         if (temp == NULL)
 242                 FATAL("PORT(%s) port not in port's list.\n", p_name);
 243         /* detach */
 244         *tempp=this->next;
 245
 246         /* close open tones file */
 247         if (p_tone_fh >= 0)
 248         {
 249                 close(p_tone_fh);
 250                 p_tone_fh = -1;
 251                 fhuse--;
 252         }
 253         p_tone_fetched = NULL;
 254 }
 255
 256 PORT_STATE_NAMES
 257
 258 /* set new endpoint state
 259  */
 260 void Port::new_state(int state)
 261 {
 262         PDEBUG(DEBUG_PORT, "PORT(%s) new state %s --> %s\n", p_name, state_name[p_state], state_name[state]);
 263         p_state = state;
 264 }
 265
 266
 267 /*
 268  * find the port with port_id
 269  */
 270 class Port *find_port_id(unsigned long port_id)
 271 {
 272         class Port *port = port_first;
 273
 274         while(port)
 275         {
 276 //printf("comparing: '%s' with '%s'\n", name, port->name);
 277                 if (port->p_serial == port_id)
 278                         return(port);
 279                 port = port->next;
 280         }
 281
 282         return(NULL);
 283 }
 284
 285
 286 /*
 287  * set echotest
 288  */
 289 void Port::set_echotest(int echotest)
 290 {
 291         p_echotest = echotest;
 292 }
 293
 294
 295 /*
 296  * set the file in the tone directory with the given name
 297  */
 298 void Port::set_tone(char *dir, char *name)
 299 {
 300         int fh;
 301         char filename[128];
 302
 303         if (name == NULL)
 304                 name = "";
 305
 306         /* no counter, no eof, normal speed */
 307         p_tone_counter = 0;
 308         p_tone_eof = 0;
 309         p_tone_speed = 1;
 310         p_tone_codec = CODEC_LAW;
 311
 312         if (p_tone_fh >= 0)
 313         {
 314                 close(p_tone_fh);
 315                 p_tone_fh = -1;
 316                 fhuse--;
 317         }
 318         p_tone_fetched = NULL;
 319
 320         if (name[0])
 321         {
 322                 if (name[0] == '/')
 323                 {
 324                         SPRINT(p_tone_name, "%s", name);
 325                         p_tone_dir[0] = '\0';
 326                 } else
 327                 {
 328                         SCPY(p_tone_dir, dir);
 329                         SCPY(p_tone_name, name);
 330                 }
 331         } else
 332         {
 333                 p_tone_name[0]= '\0';
 334                 p_tone_dir[0]= '\0';
 335                 return;
 336         }
 337
 338         if (!!strncmp(name,"cause_",6))
 339                 return;
 340
 341         /* now we check if the cause exists, otherwhise we use error tone. */
 342         if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, 0, 0)))
 343         {
 344                 p_tone_fetched = NULL;
 345                 return;
 346         }
 347         SPRINT(filename, "%s_loop", p_tone_name);
 348         if ((p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, 0, 0)))
 349         {
 350                 p_tone_fetched = NULL;
 351                 return;
 352         }
 353         SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
 354         if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
 355         {
 356                 close(fh);
 357                 return;
 358         }
 359         SPRINT(filename, "%s/%s/%s_loop", INSTALL_DATA, p_tone_dir, p_tone_name);
 360         if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
 361         {
 362                 close(fh);
 363                 return;
 364         }
 365
 366         if (!strcmp(name,"cause_00") || !strcmp(name,"cause_10"))
 367         {
 368                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using release tone\n", p_name, name+6);
 369                 SPRINT(p_tone_name,"release");
 370         } else
 371         if (!strcmp(name,"cause_11"))
 372         {
 373                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using busy tone\n", p_name, name+6);
 374                 SPRINT(p_tone_name,"busy");
 375         } else
 376         {
 377                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using error tone\n", p_name, name+6);
 378                 SPRINT(p_tone_name,"error");
 379         }
 380 }
 381
 382
 383 /*
 384  * set the file in the tone directory for vbox playback
 385  * also set the play_eof-flag
 386  */
 387 void Port::set_vbox_tone(char *dir, char *name)
 388 {
 389         char filename[256];
 390
 391         p_tone_speed = 1;
 392         p_tone_counter = 0;
 393         p_tone_codec = CODEC_LAW;
 394         p_tone_eof = 1;
 395
 396         if (p_tone_fh >= 0)
 397         {
 398                 close(p_tone_fh);
 399                 p_tone_fh = -1;
 400                 fhuse--;
 401         }
 402         p_tone_fetched = NULL;
 403
 404         SPRINT(p_tone_dir,  dir);
 405         SPRINT(p_tone_name,  name);
 406
 407         /* now we check if the cause exists, otherwhise we use error tone. */
 408         if (p_tone_dir[0])
 409         {
 410                 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, &p_tone_size, &p_tone_left)))
 411                 {
 412                         PDEBUG(DEBUG_PORT, "PORT(%s) opening fetched tone: %s\n", p_name, p_tone_name);
 413                         return;
 414                 }
 415                 SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
 416                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
 417                 {
 418                         fhuse++;
 419                         PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
 420                         return;
 421                 }
 422         } else
 423         {
 424                 SPRINT(filename, "%s", p_tone_name);
 425                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
 426                 {
 427                         fhuse++;
 428                         PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
 429                         return;
 430                 }
 431         }
 432 }
 433
 434
 435 /*
 436  * set the file in the given directory for vbox playback
 437  * also set the eof-flag
 438  * also set the counter-flag
 439  */
 440 void Port::set_vbox_play(char *name, int offset)
 441 {
 442         signed long size;
 443         struct lcr_msg *message;
 444
 445         /* use ser_box_tone() */
 446         set_vbox_tone("", name);
 447         if (p_tone_fh < 0)
 448                 return;
 449
 450         /* enable counter */
 451         p_tone_counter = 1;
 452
 453         /* seek */
 454         if (p_tone_name[0])
 455         {
 456                 /* send message with counter value */
 457                 if (p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
 458                 {
 459                         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
 460                         message->param.counter.current = offset;
 461                         message->param.counter.max = size;
 462                         message_put(message);
 463                 }
 464         }
 465 }
 466
 467
 468 /*
 469  * set the playback speed (for recording playback with different speeds)
 470  */
 471 void Port::set_vbox_speed(int speed)
 472 {
 473         /* enable vbox play mode */
 474         p_tone_speed = speed;
 475 }
 476
 477 /*
 478  * read from the given file as specified in port_set_tone and return sample data
 479  * if the tone ends, the result may be less samples than requested
 480  */
 481 int Port::read_audio(unsigned char *buffer, int length)
 482 {
 483         int l,len;
 484         int nodata=0; /* to detect 0-length files and avoid endless reopen */
 485         char filename[128];
 486         int tone_left_before; /* temp variable to determine the change in p_tone_left */
 487
 488         /* nothing */
 489         if (length == 0)
 490                 return(0);
 491
 492         len = length;
 493
 494         /* if there is no tone set, use silence */
 495         if (!p_tone_name[0])
 496                 return(0);
 497
 498         /* if the file pointer is not open, we open it */
 499         if (p_tone_fh<0 && p_tone_fetched==NULL)
 500         {
 501                 if (p_tone_dir[0])
 502                 {
 503                         SPRINT(filename, "%s", p_tone_name);
 504                         /* if file does not exist */
 505                         if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
 506                         {
 507                                 SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
 508                                 /* if file does not exist */
 509                                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
 510                                 {
 511                                         PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
 512                                         goto try_loop;
 513                                 }
 514                                 fhuse++;
 515                         }
 516                 } else
 517                 {
 518                         SPRINT(filename, "%s", p_tone_name);
 519                         /* if file does not exist */
 520                         if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
 521                         {
 522                                 PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
 523                                 goto try_loop;
 524                         }
 525                         fhuse++;
 526                 }
 527                 PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
 528         }
 529
 530 read_more:
 531         /* file descriptor is open read data */
 532         tone_left_before = p_tone_left;
 533         if (p_tone_fh >= 0)
 534         {
 535                 l = read_tone(p_tone_fh, buffer, p_tone_codec, len, p_tone_size, &p_tone_left, p_tone_speed);
 536                 if (l<0 || l>len) /* paranoia */
 537                         l=0;
 538                 buffer += l;
 539                 len -= l;
 540         }
 541         if (p_tone_fetched)
 542         {
 543                 l = read_tone_fetched(&p_tone_fetched, buffer, len, p_tone_size, &p_tone_left, p_tone_speed);
 544                 if (l<0 || l>len) /* paranoia */
 545                         l=0;
 546                 buffer += l;
 547                 len -= l;
 548         }
 549
 550         /* if counter is enabled, we check if we have a change */
 551         if (p_tone_counter && p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
 552         {
 553                 /* if we jumed to the next second */
 554                 if (((p_tone_size-p_tone_left)/8000) != (p_tone_size-tone_left_before)/8000)
 555                 {
 556 //printf("\nsize=%d left=%d\n\n",p_tone_size,p_tone_left);
 557                         struct lcr_msg *message;
 558                         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
 559                         message->param.counter.current = (p_tone_size-p_tone_left)/8000;
 560                         message->param.counter.max = -1;
 561                         message_put(message);
 562                 }
 563         }
 564
 565         if (len==0)
 566                 return(length-len);
 567
 568         if (p_tone_fh >= 0)
 569         {
 570                 close(p_tone_fh);
 571                 p_tone_fh = -1;
 572                 fhuse--;
 573         }
 574         p_tone_fetched = NULL;
 575
 576         if (l)
 577                 nodata=0;
 578
 579         /* if the file has 0-length */
 580         if (nodata>1)
 581         {
 582                 PDEBUG(DEBUG_PORT, "PORT(%s) 0-length loop: %s\n", p_name, filename);
 583                 p_tone_name[0]=0;
 584                 p_tone_dir[0]=0;
 585                 return(length-len);
 586         }
 587
 588         /* if eof is reached, or if the normal file cannot be opened, continue with the loop file if possible */
 589 try_loop:
 590         if (p_tone_eof && ACTIVE_EPOINT(p_epointlist))
 591         {
 592                 struct lcr_msg *message;
 593                 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_EOF);
 594                 message_put(message);
 595         }
 596
 597         if (p_tone_dir[0])
 598         {
 599                 /* if file does not exist */
 600                 SPRINT(filename, "%s_loop", p_tone_name);
 601                 if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
 602                 {
 603                         SPRINT(filename, "%s/%s/%s_loop", INSTALL_DATA, p_tone_dir, p_tone_name);
 604                         /* if file does not exist */
 605                         if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
 606                         {
 607                                 PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
 608                                 p_tone_dir[0] = '\0';
 609                                 p_tone_name[0] = '\0';
 610                                 return(length-len);
 611                         }
 612                         fhuse++;
 613                 }
 614         } else
 615         {
 616                 SPRINT(filename, "%s_loop", p_tone_name);
 617                 /* if file does not exist */
 618                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
 619                 {
 620                         PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
 621                         p_tone_dir[0] = '\0';
 622                         p_tone_name[0] = '\0';
 623                         return(length-len);
 624                 }
 625                 fhuse++;
 626         }
 627         nodata++;
 628         PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
 629
 630         /* now we have opened the loop */
 631         goto read_more;
 632 }
 633
 634
 635 /* port handler:
 636  * process transmission clock */
 637 int Port::handler(void)
 638 {
 639         return(0);
 640 }
 641
 642 /* endpoint sends messages to the port
 643  * this is called by the message_epoint inherited by child classes
 644  * therefor a return=1 means: stop, no more processing
 645  */
 646 //extern struct lcr_msg *dddebug;
 647 int Port::message_epoint(unsigned long epoint_id, int message_id, union parameter *param)
 648 {
 649         /* check if we got audio data from one remote port */
 650         switch(message_id)
 651         {
 652                 case MESSAGE_TONE: /* play tone */
 653                 PDEBUG(DEBUG_PORT, "PORT(%s) isdn port with (caller id %s) setting tone '%s' dir '%s'\n", p_name, p_callerinfo.id, param->tone.name, param->tone.dir);
 654                 set_tone(param->tone.dir,param->tone.name);
 655                 return(1);
 656
 657                 case MESSAGE_VBOX_TONE: /* play tone of answering machine */
 658                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine tone '%s' '%s'\n", p_name, param->tone.dir, param->tone.name);
 659                 set_vbox_tone(param->tone.dir, param->tone.name);
 660                 return(1);
 661
 662                 case MESSAGE_VBOX_PLAY: /* play recording of answering machine */
 663                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine file to play '%s' (offset %d seconds)\n", p_name, param->play.file, param->play.offset);
 664                 set_vbox_play(param->play.file, param->play.offset);
 665                 return(1);
 666
 667                 case MESSAGE_VBOX_PLAY_SPEED: /* set speed of playback (recording of answering machine) */
 668                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine playback speed %d (times)\n", p_name, param->speed);
 669                 set_vbox_speed(param->speed);
 670                 return(1);
 671
 672         }
 673
 674         return(0);
 675 }
 676
 677
 678 /* wave header structure */
 679 struct fmt {
 680         unsigned short  stereo; /* 1 = mono, 2 = stereo */
 681         unsigned short  channels; /* number of channels */
 682         unsigned long   sample_rate; /* sample rate */
 683         unsigned long   data_rate; /* data rate */
 684         unsigned short  bytes_sample; /* bytes per sample (all channels) */
 685         unsigned short  bits_sample; /* bits per sample (one channel) */
 686 };
 687
 688
 689 /*
 690  * open record file (actually a wave file with empty header which will be
 691  * written before close, because we do not know the size yet)
 692  * type=1 record annoucement,  type=0 record audio stream, type=2 record vbox
 693  */
 694 int Port::open_record(int type, int vbox, int skip, char *extension, int anon_ignore, char *vbox_email, int vbox_email_file)
 695 {
 696         /* RIFFxxxxWAVEfmt xxxx(fmt-size)dataxxxx... */
 697         char dummyheader[8+4+8+sizeof(fmt)+8];
 698         char filename[256];
 699
 700         if (!extension)
 701         {
 702                 PERROR("Port(%d) not an extension\n", p_serial);
 703                 return(0);
 704         }
 705         SCPY(p_record_extension, extension);
 706         p_record_anon_ignore = anon_ignore;
 707         SCPY(p_record_vbox_email, vbox_email);
 708         p_record_vbox_email_file = vbox_email_file;
 709
 710         if (p_record)
 711         {
 712                 PERROR("Port(%d) already recording\n", p_serial);
 713                 return(0);
 714         }
 715
 716         if (vbox != 0)
 717                 SPRINT(filename, "%s/%s/%s/vbox", INSTALL_DATA, options.extensions_dir, p_record_extension);
 718         else
 719                 SPRINT(filename, "%s/%s/%s/recordings", INSTALL_DATA, options.extensions_dir, p_record_extension);
 720         if (mkdir(filename, 0755) < 0)
 721         {
 722                 if (errno != EEXIST)
 723                 {
 724                         PERROR("Port(%d) cannot create directory '%s'\n", p_serial, filename);
 725                         return(0);
 726                 }
 727         }
 728
 729         if (vbox == 1)
 730                 UPRINT(strchr(filename,'\0'), "/announcement");
 731         else
 732                 UPRINT(strchr(filename,'\0'), "/%04d-%02d-%02d_%02d%02d%02d", now_tm->tm_year+1900, now_tm->tm_mon+1, now_tm->tm_mday, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 733         if (vbox == 2)
 734         {
 735                 p_record_vbox_year = now_tm->tm_year;
 736                 p_record_vbox_mon = now_tm->tm_mon;
 737                 p_record_vbox_mday = now_tm->tm_mday;
 738                 p_record_vbox_hour = now_tm->tm_hour;
 739                 p_record_vbox_min = now_tm->tm_min;
 740         }
 741
 742         /* check, if file exists (especially when an extension calls the same extension) */
 743         if (vbox != 1)
 744         if ((p_record = fopen(filename, "r")))
 745         {
 746                 fclose(p_record);
 747                 SCAT(filename, "_2nd");
 748         }
 749
 750         p_record = fopen(filename, "w");
 751         if (!p_record)
 752         {
 753                 PERROR("Port(%d) cannot record because file cannot be opened '%s'\n", p_serial, filename);
 754                 return(0);
 755         }
 756         fduse++;
 757
 758         p_record_type = type;
 759         p_record_vbox = vbox;
 760         p_record_skip = skip;
 761         p_record_length = 0;
 762         switch(p_record_type)
 763         {
 764                 case CODEC_MONO:
 765                 case CODEC_STEREO:
 766                 case CODEC_8BIT:
 767                 fwrite(dummyheader, sizeof(dummyheader), 1, p_record);
 768                 break;
 769
 770                 case CODEC_LAW:
 771                 break;
 772         }
 773         UCPY(p_record_filename, filename);
 774
 775         PDEBUG(DEBUG_PORT, "Port(%d) recording started with file name '%s'\n", p_serial, filename);
 776         return(1);
 777 }
 778
 779
 780 /*
 781  * close the recoding file, put header in front and rename
 782  */
 783 void Port::close_record(int beep, int mute)
 784 {
 785         static signed short beep_mono[256];
 786         unsigned long size, wsize;
 787         struct fmt fmt;
 788         char filename[512], indexname[512];
 789         FILE *fp;
 790         int i, ii;
 791         char number[256], callerid[256];
 792         char *p;
 793         struct caller_info callerinfo;
 794         char *valid_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_.-!$%&/()=+*;~";
 795
 796         if (!p_record)
 797                 return;
 798         PDEBUG(DEBUG_PORT, "data still in record buffer: %d (dir %d)\n", (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK, p_record_buffer_dir);
 799
 800         memcpy(&callerinfo, &p_callerinfo, sizeof(struct caller_info));
 801 //      apply_callerid_restriction(p_record_anon_ignore, callerinfo.id, &callerinfo.ntype, &callerinfo.present, &callerinfo.screen, callerinfo.extension, callerinfo.name);
 802
 803         SCPY(number, p_dialinginfo.id);
 804         SCPY(callerid, numberrize_callerinfo(callerinfo.id, callerinfo.ntype, options.national, options.international));
 805         if (callerid[0] == '\0')
 806         {
 807                 if (callerinfo.present == INFO_PRESENT_RESTRICTED)
 808                         UCPY(callerid,"anonymous");
 809                 else
 810                         UCPY(callerid,"unknown");
 811         }
 812
 813         /* change verboten digits */
 814         p = callerid;
 815         while((p=strchr(p,'*')))
 816                 *(p++) = 'x';
 817         p = callerid;
 818         while((p=strchr(p,'/')))
 819                 *(p++) = 'x';
 820         p = number;
 821         while((p=strchr(p,'*')))
 822                 *(p++) = 'x';
 823         p = number;
 824         while((p=strchr(p,'/')))
 825                 *(p++) = 'x';
 826         i = 0;
 827         ii = strlen(callerid);
 828         while(i < ii)
 829         {
 830                 if (!strchr(valid_chars, callerid[i]))
 831                         callerid[i] = '_';
 832                 i++;
 833         }
 834         i = 0;
 835         ii = strlen(number);
 836         while(i < ii)
 837         {
 838                 if (!strchr(valid_chars, number[i]))
 839                         number[i] = '_';
 840                 i++;
 841         }
 842
 843         /* mute */
 844         if (mute && p_record_type==CODEC_MONO)
 845         {
 846                 i = p_record_length;
 847                 if (i > mute)
 848                         i = mute;
 849                 fseek(p_record, -(i<<1), SEEK_END);
 850                 p_record_length -= (i<<1);
 851         }
 852         /* add beep to the end of recording */
 853         if (beep && p_record_type==CODEC_MONO)
 854         {
 855                 i = 0;
 856                 while(i < 256)
 857                 {
 858                         beep_mono[i] = (signed short)(sin((double)i / 5.688888888889 * 2.0 * 3.1415927) * 2000.0);
 859                         i++;
 860                 }
 861                 i = 0;
 862                 while(i < beep)
 863                 {
 864                         fwrite(beep_mono, sizeof(beep_mono), 1, p_record);
 865                         i += sizeof(beep_mono);
 866                         p_record_length += sizeof(beep_mono);
 867                 }
 868         }
 869
 870         /* complete header */
 871         switch(p_record_type)
 872         {
 873                 case CODEC_MONO:
 874                 case CODEC_STEREO:
 875                 case CODEC_8BIT:
 876                 /* cue */
 877                 fprintf(p_record, "cue %c%c%c%c%c%c%c%c", 4, 0, 0, 0, 0,0,0,0);
 878
 879                 /* LIST */
 880                 fprintf(p_record, "LIST%c%c%c%cadtl", 4, 0, 0, 0);
 881
 882                 /* go to header */
 883                 fseek(p_record, 0, SEEK_SET);
 884
 885                 /* WAVEfmt xxxx(fmt-size)dataxxxx[data]cue xxxx0000LISTxxxxadtl*/
 886                 size = p_record_length;
 887                 wsize = 4+8+sizeof(fmt)+8+size+8+4+8+4;
 888
 889                 /* RIFF */
 890                 fprintf(p_record, "RIFF%c%c%c%c", (unsigned char)(wsize&0xff), (unsigned char)((wsize>>8)&0xff), (unsigned char)((wsize>>16)&0xff), (unsigned char)(wsize>>24));
 891
 892                 /* WAVE */
 893                 fprintf(p_record, "WAVE");
 894
 895                 /* fmt */
 896                 fprintf(p_record, "fmt %c%c%c%c", sizeof(fmt), 0, 0, 0);
 897                 switch(p_record_type)
 898                 {
 899                         case CODEC_MONO:
 900                         fmt.stereo = 1;
 901                         fmt.channels = 1;
 902                         fmt.sample_rate = 8000; /* samples/sec */
 903                         fmt.data_rate = 16000; /* full data rate */
 904                         fmt.bytes_sample = 2; /* all channels */
 905                         fmt.bits_sample = 16; /* one channel */
 906                         break;
 907
 908                         case CODEC_STEREO:
 909                         fmt.stereo = 1;
 910                         fmt.channels = 2;
 911                         fmt.sample_rate = 8000; /* samples/sec */
 912                         fmt.data_rate = 32000; /* full data rate */
 913                         fmt.bytes_sample = 4; /* all channels */
 914                         fmt.bits_sample = 16; /* one channel */
 915                         break;
 916
 917                         case CODEC_8BIT:
 918                         fmt.stereo = 1;
 919                         fmt.channels = 1;
 920                         fmt.sample_rate = 8000; /* samples/sec */
 921                         fmt.data_rate = 8000; /* full data rate */
 922                         fmt.bytes_sample = 1; /* all channels */
 923                         fmt.bits_sample = 8; /* one channel */
 924                         break;
 925                 }
 926                 fwrite(&fmt, sizeof(fmt), 1, p_record);
 927
 928                 /* data */
 929                 fprintf(p_record, "data%c%c%c%c", (unsigned char)(size&0xff), (unsigned char)((size>>8)&0xff), (unsigned char)((size>>16)&0xff), (unsigned char)(size>>24));
 930
 931                 /* rename file */
 932                 if (p_record_vbox == 1)
 933                         SPRINT(filename, "%s.wav", p_record_filename);
 934                 else
 935                         SPRINT(filename, "%s_%s-%s.wav", p_record_filename, callerid, number);
 936                 break;
 937
 938                 case CODEC_LAW:
 939                 /* rename file */
 940                 if (p_record_vbox == 1)
 941                         SPRINT(filename, "%s.isdn", p_record_filename);
 942                 else
 943                         SPRINT(filename, "%s_%s-%s.isdn", p_record_filename, callerid, number);
 944                 break;
 945         }
 946
 947         fclose(p_record);
 948         fduse--;
 949         p_record = NULL;
 950
 951         if (rename(p_record_filename, filename) < 0)
 952         {
 953                 PERROR("Port(%d) cannot rename from '%s' to '%s'\n", p_serial, p_record_filename, filename);
 954                 return;
 955         }
 956
 957         PDEBUG(DEBUG_PORT, "Port(%d) recording is written and renamed to '%s' and must have the following size:%lu raw:%lu samples:%lu\n", p_serial, filename, wsize+8, size, size>>1);
 958
 959         if (p_record_vbox == 2)
 960         {
 961                 SPRINT(indexname, "%s/%s/%s/vbox/index", INSTALL_DATA, options.extensions_dir, p_record_extension);
 962                 if ((fp = fopen(indexname,"a")))
 963                 {
 964                         fduse++;
 965
 966                         /* remove path from file name */
 967                         p = filename;
 968                         while(strchr(p, '/'))
 969                                 p = strchr(p, '/')+1;
 970                         fprintf(fp, "%s %d %d %d %d %d %s\n", p, p_record_vbox_year, p_record_vbox_mon, p_record_vbox_mday, p_record_vbox_hour, p_record_vbox_min, callerid);
 971
 972                         fclose(fp);
 973                         fduse--;
 974                 } else
 975                 {
 976                         PERROR("Port(%d) cannot open index file '%s' to append.\n", p_serial, indexname);
 977                 }
 978
 979                 /* send email with sample*/
 980                 if (p_record_vbox_email[0])
 981                 {
 982                         send_mail(p_record_vbox_email_file?filename:(char *)"", callerid, callerinfo.extension, callerinfo.name, p_record_vbox_email, p_record_vbox_year, p_record_vbox_mon, p_record_vbox_mday, p_record_vbox_hour, p_record_vbox_min, p_record_extension);
 983                 }
 984         }
 985 }
 986
 987
 988 /*
 989  * recording function
 990  * Records all data from down and from up into one single stream.
 991  * Both streams may have gaps or jitter.
 992  * A Jitter buffer for both streams is used to compensate jitter.
 993  *
 994  * If one stream (dir) received packets, they are stored to a
 995  * buffer to wait for the other stream (dir), so both streams can
 996  * be combined. If the buffer is full, it's content is written
 997  * without mixing stream. (assuming only one stram (dir) exists.)
 998  * A flag is used to indicate what stream is currently in buffer.
 999  *
1000  * NOTE: First stereo sample (odd) is from down, second is from up.
1001  */
1002 void Port::record(unsigned char *data, int length, int dir_fromup)
1003 {
1004         unsigned char write_buffer[1024], *d;
1005         signed short *s;
1006         int free, i, ii;
1007         signed long sample;
1008
1009         /* no recording */
1010         if (!p_record || !length)
1011                 return;
1012
1013         /* skip data from local caller (dtmf input) */
1014         if (p_record_skip && !dir_fromup)
1015         {
1016                 /* more to skip than we have */
1017                 if (p_record_skip > length)
1018                 {
1019                         p_record_skip -= length;
1020                         return;
1021                 }
1022                 /* less to skip */
1023                 data += p_record_skip;
1024                 length -= p_record_skip;
1025                 p_record_skip = 0;
1026         }
1027
1028 //printf("dir=%d len=%d\n", dir_fromup, length);
1029
1030         free = ((p_record_buffer_readp - p_record_buffer_writep - 1) & RECORD_BUFFER_MASK);
1031
1032 //PDEBUG(DEBUG_PORT, "record(data,%d,%d): free=%d, p_record_buffer_dir=%d, p_record_buffer_readp=%d, p_record_buffer_writep=%d.\n", length, dir_fromup, free, p_record_buffer_dir, p_record_buffer_readp, p_record_buffer_writep);
1033
1034         /* the buffer stores the same data stream */
1035         if (dir_fromup == p_record_buffer_dir)
1036         {
1037 same_again:
1038
1039 //printf("same free=%d length=%d\n", free, length);
1040                 /* first write what we can to the buffer */
1041                 while(free && length)
1042                 {
1043                         p_record_buffer[p_record_buffer_writep] = audio_law_to_s32[*data++];
1044                         p_record_buffer_writep = (p_record_buffer_writep + 1) & RECORD_BUFFER_MASK;
1045                         free--;
1046                         length--;
1047                 }
1048                 /* all written, so we return */
1049                 if (!length)
1050                         return;
1051                 /* still data left, buffer is full, so we need to write a chunk to file */
1052                 switch(p_record_type)
1053                 {
1054                         case CODEC_MONO:
1055                         s = (signed short *)write_buffer;
1056                         i = 0;
1057                         while(i < 256)
1058                         {
1059                                 *s++ = p_record_buffer[p_record_buffer_readp];
1060                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1061                                 i++;
1062                         }
1063                         fwrite(write_buffer, 512, 1, p_record);
1064                         p_record_length += 512;
1065                         break;
1066
1067                         case CODEC_STEREO:
1068                         s = (signed short *)write_buffer;
1069                         if (p_record_buffer_dir)
1070                         {
1071                                 i = 0;
1072                                 while(i < 256)
1073                                 {
1074                                         *s++ = 0; /* nothing from down */
1075                                         *s++ = p_record_buffer[p_record_buffer_readp];
1076                                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1077                                         i++;
1078                                 }
1079                         } else
1080                         {
1081                                 i = 0;
1082                                 while(i < 256)
1083                                 {
1084                                         *s++ = p_record_buffer[p_record_buffer_readp];
1085                                         *s++ = 0; /* nothing from up */
1086                                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1087                                         i++;
1088                                 }
1089                         }
1090                         fwrite(write_buffer, 1024, 1, p_record);
1091                         p_record_length += 1024;
1092                         break;
1093
1094                         case CODEC_8BIT:
1095                         d = write_buffer;
1096                         i = 0;
1097                         while(i < 256)
1098                         {
1099                                 *d++ = ((unsigned short)(p_record_buffer[p_record_buffer_readp]+0x8000)) >> 8;
1100                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1101                                 i++;
1102                         }
1103                         fwrite(write_buffer, 512, 1, p_record);
1104                         p_record_length += 512;
1105                         break;
1106
1107                         case CODEC_LAW:
1108                         d = write_buffer;
1109                         i = 0;
1110                         while(i < 256)
1111                         {
1112                                 *d++ = audio_s16_to_law[p_record_buffer[p_record_buffer_readp] & 0xffff];
1113                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1114                                 i++;
1115                         }
1116                         fwrite(write_buffer, 256, 1, p_record);
1117                         p_record_length += 256;
1118                         break;
1119                 }
1120                 /* because we still have data, we write again */
1121                 free += 256;
1122                 goto same_again;
1123         }
1124         /* the buffer stores the other stream */
1125
1126 different_again:
1127         /* if buffer empty, change it */
1128         if (p_record_buffer_readp == p_record_buffer_writep)
1129         {
1130                 p_record_buffer_dir = dir_fromup;
1131                 goto same_again;
1132         }
1133         /* how much data can we mix ? */
1134         ii = (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK;
1135         if (length < ii)
1136                 ii = length;
1137
1138         if (ii > 256)
1139                 ii = 256;
1140 //printf("same ii=%d length=%d\n", ii, length);
1141 //PDEBUG(DEBUG_PORT, "record(data,%d,%d): free=%d, p_record_buffer_dir=%d, p_record_buffer_readp=%d, p_record_buffer_writep=%d: mixing %d bytes.\n", length, dir_fromup, free, p_record_buffer_dir, p_record_buffer_readp, p_record_buffer_writep, ii);
1142
1143         /* write data mixed with the buffer */
1144         switch(p_record_type)
1145         {
1146                 case CODEC_MONO:
1147                 s = (signed short *)write_buffer;
1148                 i = 0;
1149                 while(i < ii)
1150                 {
1151                         sample = p_record_buffer[p_record_buffer_readp]
1152                                 + audio_law_to_s32[*data++];
1153                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1154                         if (sample < SHORT_MIN) sample = SHORT_MIN;
1155                         if (sample > SHORT_MAX) sample = SHORT_MAX;
1156                         *s++ = sample;
1157                         i++;
1158                 }
1159                 fwrite(write_buffer, ii<<1, 1, p_record);
1160                 p_record_length += (ii<<1);
1161                 break;
1162
1163                 case CODEC_STEREO:
1164                 s = (signed short *)write_buffer;
1165                 if (p_record_buffer_dir)
1166                 {
1167                         i = 0;
1168                         while(i < ii)
1169                         {
1170                                 *s++ = audio_law_to_s32[*data++];
1171                                 *s++ = p_record_buffer[p_record_buffer_readp];
1172                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1173                                 i++;
1174                         }
1175                 } else
1176                 {
1177                         i = 0;
1178                         while(i < ii)
1179                         {
1180                                 *s++ = p_record_buffer[p_record_buffer_readp];
1181                                 *s++ = audio_law_to_s32[*data++];
1182                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1183                                 i++;
1184                         }
1185                 }
1186                 fwrite(write_buffer, ii<<2, 1, p_record);
1187                 p_record_length += (ii<<2);
1188                 break;
1189
1190                 case CODEC_8BIT:
1191                 d = write_buffer;
1192                 i = 0;
1193                 while(i < ii)
1194                 {
1195                         sample = p_record_buffer[p_record_buffer_readp]
1196                                 + audio_law_to_s32[*data++];
1197                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1198                         if (sample < SHORT_MIN) sample = SHORT_MIN;
1199                         if (sample > SHORT_MAX) sample = SHORT_MAX;
1200                         *d++ = (sample+0x8000) >> 8;
1201                         i++;
1202                 }
1203                 fwrite(write_buffer, ii, 1, p_record);
1204                 p_record_length += ii;
1205                 break;
1206
1207                 case CODEC_LAW:
1208                 d = write_buffer;
1209                 i = 0;
1210                 while(i < ii)
1211                 {
1212                         sample = p_record_buffer[p_record_buffer_readp]
1213                                 + audio_law_to_s32[*data++];
1214                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1215                         if (sample < SHORT_MIN) sample = SHORT_MIN;
1216                         if (sample > SHORT_MAX) sample = SHORT_MAX;
1217                         *d++ = audio_s16_to_law[sample & 0xffff];
1218                         i++;
1219                 }
1220                 fwrite(write_buffer, ii, 1, p_record);
1221                 p_record_length += ii;
1222                 break;
1223         }
1224         length -= ii;
1225         /* still data */
1226         if (length)
1227                 goto different_again;
1228         /* no data (maybe buffer) */
1229         return;
1230
1231 }
1232
1233