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