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                 /* trigger playback */
 320                 update_load();
 321         } else {
 322                 p_tone_name[0]= '\0';
 323                 p_tone_dir[0]= '\0';
 324                 return;
 325         }
 326
 327         if (!!strncmp(name,"cause_",6))
 328                 return;
 329
 330         /* now we check if the cause exists, otherwhise we use error tone. */
 331         if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, 0, 0))) {
 332                 p_tone_fetched = NULL;
 333                 return;
 334         }
 335         SPRINT(filename, "%s_loop", p_tone_name);
 336         if ((p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, 0, 0))) {
 337                 p_tone_fetched = NULL;
 338                 return;
 339         }
 340         SPRINT(filename, "%s/%s/%s", SHARE_DATA, p_tone_dir, p_tone_name);
 341         if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0) {
 342                 close(fh);
 343                 return;
 344         }
 345         SPRINT(filename, "%s/%s/%s_loop", SHARE_DATA, p_tone_dir, p_tone_name);
 346         if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0) {
 347                 close(fh);
 348                 return;
 349         }
 350
 351         if (!strcmp(name,"cause_00") || !strcmp(name,"cause_10")) {
 352                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using release tone\n", p_name, name+6);
 353                 SPRINT(p_tone_name,"release");
 354         } else
 355         if (!strcmp(name,"cause_11")) {
 356                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using busy tone\n", p_name, name+6);
 357                 SPRINT(p_tone_name,"busy");
 358         } else {
 359                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using error tone\n", p_name, name+6);
 360                 SPRINT(p_tone_name,"error");
 361         }
 362 }
 363
 364
 365 /*
 366  * set the file in the tone directory for vbox playback
 367  * also set the play_eof-flag
 368  */
 369 void Port::set_vbox_tone(const char *dir, const char *name)
 370 {
 371         char filename[256];
 372
 373         p_tone_speed = 1;
 374         p_tone_counter = 0;
 375         p_tone_codec = CODEC_LAW;
 376         p_tone_eof = 1;
 377
 378         if (p_tone_fh >= 0) {
 379                 close(p_tone_fh);
 380                 p_tone_fh = -1;
 381                 fhuse--;
 382         }
 383         p_tone_fetched = NULL;
 384
 385         SPRINT(p_tone_dir,  dir);
 386         SPRINT(p_tone_name,  name);
 387         /* trigger playback */
 388         update_load();
 389
 390         /* now we check if the cause exists, otherwhise we use error tone. */
 391         if (p_tone_dir[0]) {
 392                 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, &p_tone_size, &p_tone_left))) {
 393                         PDEBUG(DEBUG_PORT, "PORT(%s) opening fetched tone: %s\n", p_name, p_tone_name);
 394                         return;
 395                 }
 396                 SPRINT(filename, "%s/%s/%s", SHARE_DATA, p_tone_dir, p_tone_name);
 397                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0) {
 398                         fhuse++;
 399                         PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
 400                         return;
 401                 }
 402         } else {
 403                 SPRINT(filename, "%s", p_tone_name);
 404                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0) {
 405                         fhuse++;
 406                         PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
 407                         return;
 408                 }
 409         }
 410 }
 411
 412
 413 /*
 414  * set the file in the given directory for vbox playback
 415  * also set the eof-flag
 416  * also set the counter-flag
 417  */
 418 void Port::set_vbox_play(const char *name, int offset)
 419 {
 420         struct lcr_msg *message;
 421
 422         /* use ser_box_tone() */
 423         set_vbox_tone("", name);
 424         if (p_tone_fh < 0)
 425                 return;
 426
 427         /* enable counter */
 428         p_tone_counter = 1;
 429
 430         /* seek */
 431         if (p_tone_name[0]) {
 432                 /* send message with counter value */
 433                 if (p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist)) {
 434                         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
 435                         message->param.counter.current = offset;
 436                         message->param.counter.max = p_tone_size;
 437                         message_put(message);
 438                 }
 439         }
 440 }
 441
 442
 443 /*
 444  * set the playback speed (for recording playback with different speeds)
 445  */
 446 void Port::set_vbox_speed(int speed)
 447 {
 448         /* enable vbox play mode */
 449         p_tone_speed = speed;
 450 }
 451
 452 /*
 453  * read from the given file as specified in port_set_tone and return sample data
 454  * if the tone ends, the result may be less samples than requested
 455  */
 456 int Port::read_audio(unsigned char *buffer, int length)
 457 {
 458         int l = 0,len;
 459         int nodata=0; /* to detect 0-length files and avoid endless reopen */
 460         char filename[128];
 461         int tone_left_before; /* temp variable to determine the change in p_tone_left */
 462
 463         /* nothing */
 464         if (length == 0)
 465                 return(0);
 466
 467         len = length;
 468
 469         /* if there is no tone set, use silence */
 470         if (!p_tone_name[0])
 471                 return(0);
 472
 473         /* if the file pointer is not open, we open it */
 474         if (p_tone_fh<0 && p_tone_fetched==NULL) {
 475                 if (p_tone_dir[0]) {
 476                         SPRINT(filename, "%s", p_tone_name);
 477                         /* if file does not exist */
 478                         if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left))) {
 479                                 SPRINT(filename, "%s/%s/%s", SHARE_DATA, p_tone_dir, p_tone_name);
 480                                 /* if file does not exist */
 481                                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0) {
 482                                         PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
 483                                         goto try_loop;
 484                                 }
 485                                 fhuse++;
 486                         }
 487                 } else {
 488                         SPRINT(filename, "%s", p_tone_name);
 489                         /* if file does not exist */
 490                         if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0) {
 491                                 PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
 492                                 goto try_loop;
 493                         }
 494                         fhuse++;
 495                 }
 496                 PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
 497         }
 498
 499 read_more:
 500         /* file descriptor is open read data */
 501         tone_left_before = p_tone_left;
 502         if (p_tone_fh >= 0) {
 503                 l = read_tone(p_tone_fh, buffer, p_tone_codec, len, p_tone_size, &p_tone_left, p_tone_speed);
 504                 if (l<0 || l>len) /* paranoia */
 505                         l=0;
 506                 buffer += l;
 507                 len -= l;
 508         }
 509         if (p_tone_fetched) {
 510                 l = read_tone_fetched(&p_tone_fetched, buffer, len, p_tone_size, &p_tone_left, p_tone_speed);
 511                 if (l<0 || l>len) /* paranoia */
 512                         l=0;
 513                 buffer += l;
 514                 len -= l;
 515         }
 516
 517         /* if counter is enabled, we check if we have a change */
 518         if (p_tone_counter && p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist)) {
 519                 /* if we jumed to the next second */
 520                 if (((p_tone_size-p_tone_left)/8000) != (p_tone_size-tone_left_before)/8000) {
 521 //printf("\nsize=%d left=%d\n\n",p_tone_size,p_tone_left);
 522                         struct lcr_msg *message;
 523                         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
 524                         message->param.counter.current = (p_tone_size-p_tone_left)/8000;
 525                         message->param.counter.max = -1;
 526                         message_put(message);
 527                 }
 528         }
 529
 530         if (len==0)
 531                 return(length-len);
 532
 533         if (p_tone_fh >= 0) {
 534                 close(p_tone_fh);
 535                 p_tone_fh = -1;
 536                 fhuse--;
 537         }
 538         p_tone_fetched = NULL;
 539
 540         if (l)
 541                 nodata=0;
 542
 543         /* if the file has 0-length */
 544         if (nodata>1) {
 545                 PDEBUG(DEBUG_PORT, "PORT(%s) 0-length loop: %s\n", p_name, filename);
 546                 p_tone_name[0]=0;
 547                 p_tone_dir[0]=0;
 548                 return(length-len);
 549         }
 550
 551         /* if eof is reached, or if the normal file cannot be opened, continue with the loop file if possible */
 552 try_loop:
 553         if (p_tone_eof && ACTIVE_EPOINT(p_epointlist)) {
 554                 struct lcr_msg *message;
 555                 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_EOF);
 556                 message_put(message);
 557         }
 558
 559         if (p_tone_dir[0]) {
 560                 /* if file does not exist */
 561                 SPRINT(filename, "%s_loop", p_tone_name);
 562                 if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left))) {
 563                         SPRINT(filename, "%s/%s/%s_loop", SHARE_DATA, p_tone_dir, p_tone_name);
 564                         /* if file does not exist */
 565                         if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0) {
 566                                 PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
 567                                 p_tone_dir[0] = '\0';
 568                                 p_tone_name[0] = '\0';
 569                                 return(length-len);
 570                         }
 571                         fhuse++;
 572                 }
 573         } else {
 574                 SPRINT(filename, "%s_loop", p_tone_name);
 575                 /* if file does not exist */
 576                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0) {
 577                         PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
 578                         p_tone_dir[0] = '\0';
 579                         p_tone_name[0] = '\0';
 580                         return(length-len);
 581                 }
 582                 fhuse++;
 583         }
 584         nodata++;
 585         PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
 586
 587         /* now we have opened the loop */
 588         goto read_more;
 589 }
 590
 591
 592 /* endpoint sends messages to the port
 593  * this is called by the message_epoint inherited by child classes
 594  * therefor a return=1 means: stop, no more processing
 595  */
 596 //extern struct lcr_msg *dddebug;
 597 int Port::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
 598 {
 599         /* check if we got audio data from one remote port */
 600         switch(message_id) {
 601                 case MESSAGE_TONE: /* play tone */
 602                 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);
 603                 set_tone(param->tone.dir,param->tone.name);
 604                 return(1);
 605
 606                 case MESSAGE_VBOX_TONE: /* play tone of answering machine */
 607                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine tone '%s' '%s'\n", p_name, param->tone.dir, param->tone.name);
 608                 set_vbox_tone(param->tone.dir, param->tone.name);
 609                 return(1);
 610
 611                 case MESSAGE_VBOX_PLAY: /* play recording of answering machine */
 612                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine file to play '%s' (offset %d seconds)\n", p_name, param->play.file, param->play.offset);
 613                 set_vbox_play(param->play.file, param->play.offset);
 614                 return(1);
 615
 616                 case MESSAGE_VBOX_PLAY_SPEED: /* set speed of playback (recording of answering machine) */
 617                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine playback speed %d (times)\n", p_name, param->speed);
 618                 set_vbox_speed(param->speed);
 619                 return(1);
 620
 621         }
 622
 623         return(0);
 624 }
 625
 626
 627 /* wave header structure */
 628 struct fmt {
 629         unsigned short  stereo; /* 1 = mono, 2 = stereo */
 630         unsigned short  channels; /* number of channels */
 631         unsigned int    sample_rate; /* sample rate */
 632         unsigned int    data_rate; /* data rate */
 633         unsigned short  bytes_sample; /* bytes per sample (all channels) */
 634         unsigned short  bits_sample; /* bits per sample (one channel) */
 635 };
 636
 637
 638 /*
 639  * open record file (actually a wave file with empty header which will be
 640  * written before close, because we do not know the size yet)
 641  * type=1 record annoucement,  type=0 record audio stream, type=2 record vbox
 642  */
 643 int Port::open_record(int type, int vbox, int skip, char *extension, int anon_ignore, const char *vbox_email, int vbox_email_file)
 644 {
 645         /* RIFFxxxxWAVEfmt xxxx(fmt-size)dataxxxx... */
 646         char dummyheader[8+4+8+sizeof(fmt)+8];
 647         char filename[256];
 648         time_t now;
 649         struct tm *now_tm;
 650         int ret;
 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                 time(&now);
 681                 now_tm = localtime(&now);
 682                 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);
 683         }
 684         if (vbox == 2) {
 685                 p_record_vbox_year = now_tm->tm_year;
 686                 p_record_vbox_mon = now_tm->tm_mon;
 687                 p_record_vbox_mday = now_tm->tm_mday;
 688                 p_record_vbox_hour = now_tm->tm_hour;
 689                 p_record_vbox_min = now_tm->tm_min;
 690         }
 691
 692         /* check, if file exists (especially when an extension calls the same extension) */
 693         if (vbox != 1)
 694         if ((p_record = fopen(filename, "r"))) {
 695                 fclose(p_record);
 696                 SCAT(filename, "_2nd");
 697         }
 698
 699         p_record = fopen(filename, "w");
 700         if (!p_record) {
 701                 PERROR("Port(%d) cannot record because file cannot be opened '%s'\n", p_serial, filename);
 702                 return(0);
 703         }
 704         update_rxoff();
 705         fduse++;
 706
 707         p_record_type = type;
 708         p_record_vbox = vbox;
 709         p_record_skip = skip;
 710         p_record_length = 0;
 711         switch(p_record_type) {
 712                 case CODEC_MONO:
 713                 case CODEC_STEREO:
 714                 case CODEC_8BIT:
 715                 ret = fwrite(dummyheader, sizeof(dummyheader), 1, p_record);
 716                 break;
 717
 718                 case CODEC_LAW:
 719                 break;
 720         }
 721         UCPY(p_record_filename, filename);
 722
 723         PDEBUG(DEBUG_PORT, "Port(%d) recording started with file name '%s'\n", p_serial, filename);
 724         return(1);
 725 }
 726
 727
 728 /*
 729  * close the recoding file, put header in front and rename
 730  */
 731 void Port::close_record(int beep, int mute)
 732 {
 733         static signed short beep_mono[256];
 734         unsigned int size = 0, wsize = 0;
 735         struct fmt fmt;
 736         char filename[512], indexname[512];
 737         FILE *fp;
 738         int i, ii;
 739         char number[256], callerid[256];
 740         char *p;
 741         struct caller_info callerinfo;
 742         const char *valid_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_.-!$%&/()=+*;~";
 743         int ret;
 744
 745         if (!p_record)
 746                 return;
 747         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);
 748
 749         memcpy(&callerinfo, &p_callerinfo, sizeof(struct caller_info));
 750 //      apply_callerid_restriction(p_record_anon_ignore, callerinfo.id, &callerinfo.ntype, &callerinfo.present, &callerinfo.screen, callerinfo.extension, callerinfo.name);
 751
 752         SCPY(number, p_dialinginfo.id);
 753         SCPY(callerid, numberrize_callerinfo(callerinfo.id, callerinfo.ntype, options.national, options.international));
 754         if (callerid[0] == '\0') {
 755                 if (callerinfo.present == INFO_PRESENT_RESTRICTED)
 756                         UCPY(callerid,"anonymous");
 757                 else
 758                         UCPY(callerid,"unknown");
 759         }
 760
 761         /* change verboten digits */
 762         p = callerid;
 763         while((p=strchr(p,'*')))
 764                 *(p++) = 'x';
 765         p = callerid;
 766         while((p=strchr(p,'/')))
 767                 *(p++) = 'x';
 768         p = number;
 769         while((p=strchr(p,'*')))
 770                 *(p++) = 'x';
 771         p = number;
 772         while((p=strchr(p,'/')))
 773                 *(p++) = 'x';
 774         i = 0;
 775         ii = strlen(callerid);
 776         while(i < ii) {
 777                 if (!strchr(valid_chars, callerid[i]))
 778                         callerid[i] = '_';
 779                 i++;
 780         }
 781         i = 0;
 782         ii = strlen(number);
 783         while(i < ii) {
 784                 if (!strchr(valid_chars, number[i]))
 785                         number[i] = '_';
 786                 i++;
 787         }
 788
 789         /* mute */
 790         if (mute && p_record_type==CODEC_MONO) {
 791                 i = p_record_length;
 792                 if (i > mute)
 793                         i = mute;
 794                 fseek(p_record, -(i<<1), SEEK_END);
 795                 p_record_length -= (i<<1);
 796         }
 797         /* add beep to the end of recording */
 798         if (beep && p_record_type==CODEC_MONO) {
 799                 i = 0;
 800                 while(i < 256) {
 801                         beep_mono[i] = (signed short)(sin((double)i / 5.688888888889 * 2.0 * 3.1415927) * 2000.0);
 802                         i++;
 803                 }
 804                 i = 0;
 805                 while(i < beep) {
 806                         ret = fwrite(beep_mono, sizeof(beep_mono), 1, p_record);
 807                         i += sizeof(beep_mono);
 808                         p_record_length += sizeof(beep_mono);
 809                 }
 810         }
 811
 812         /* complete header */
 813         switch(p_record_type) {
 814                 case CODEC_MONO:
 815                 case CODEC_STEREO:
 816                 case CODEC_8BIT:
 817                 /* cue */
 818                 fprintf(p_record, "cue %c%c%c%c%c%c%c%c", 4, 0, 0, 0, 0,0,0,0);
 819
 820                 /* LIST */
 821                 fprintf(p_record, "LIST%c%c%c%cadtl", 4, 0, 0, 0);
 822
 823                 /* go to header */
 824                 fseek(p_record, 0, SEEK_SET);
 825
 826                 /* WAVEfmt xxxx(fmt-size)dataxxxx[data]cue xxxx0000LISTxxxxadtl*/
 827                 size = p_record_length;
 828                 wsize = 4+8+sizeof(fmt)+8+size+8+4+8+4;
 829
 830                 /* RIFF */
 831                 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));
 832
 833                 /* WAVE */
 834                 fprintf(p_record, "WAVE");
 835
 836                 /* fmt */
 837                 fprintf(p_record, "fmt %c%c%c%c", (unsigned int)sizeof(fmt), 0, 0, 0);
 838                 switch(p_record_type) {
 839                         case CODEC_MONO:
 840                         fmt.stereo = 1;
 841                         fmt.channels = 1;
 842                         fmt.sample_rate = 8000; /* samples/sec */
 843                         fmt.data_rate = 16000; /* full data rate */
 844                         fmt.bytes_sample = 2; /* all channels */
 845                         fmt.bits_sample = 16; /* one channel */
 846                         break;
 847
 848                         case CODEC_STEREO:
 849                         fmt.stereo = 1;
 850                         fmt.channels = 2;
 851                         fmt.sample_rate = 8000; /* samples/sec */
 852                         fmt.data_rate = 32000; /* full data rate */
 853                         fmt.bytes_sample = 4; /* all channels */
 854                         fmt.bits_sample = 16; /* one channel */
 855                         break;
 856
 857                         case CODEC_8BIT:
 858                         fmt.stereo = 1;
 859                         fmt.channels = 1;
 860                         fmt.sample_rate = 8000; /* samples/sec */
 861                         fmt.data_rate = 8000; /* full data rate */
 862                         fmt.bytes_sample = 1; /* all channels */
 863                         fmt.bits_sample = 8; /* one channel */
 864                         break;
 865                 }
 866                 ret = fwrite(&fmt, sizeof(fmt), 1, p_record);
 867
 868                 /* data */
 869                 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));
 870
 871                 /* rename file */
 872                 if (p_record_vbox == 1)
 873                         SPRINT(filename, "%s.wav", p_record_filename);
 874                 else
 875                         SPRINT(filename, "%s_%s-%s.wav", p_record_filename, callerid, number);
 876                 break;
 877
 878                 case CODEC_LAW:
 879                 /* rename file */
 880                 if (p_record_vbox == 1)
 881                         SPRINT(filename, "%s.isdn", p_record_filename);
 882                 else
 883                         SPRINT(filename, "%s_%s-%s.isdn", p_record_filename, callerid, number);
 884                 break;
 885         }
 886
 887         fclose(p_record);
 888         fduse--;
 889         p_record = NULL;
 890         update_rxoff();
 891
 892         if (rename(p_record_filename, filename) < 0) {
 893                 PERROR("Port(%d) cannot rename from '%s' to '%s'\n", p_serial, p_record_filename, filename);
 894                 return;
 895         }
 896
 897         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);
 898
 899         if (p_record_vbox == 2) {
 900                 SPRINT(indexname, "%s/%s/vbox/index", EXTENSION_DATA, p_record_extension);
 901                 if ((fp = fopen(indexname,"a"))) {
 902                         fduse++;
 903
 904                         /* remove path from file name */
 905                         p = filename;
 906                         while(strchr(p, '/'))
 907                                 p = strchr(p, '/')+1;
 908                         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);
 909
 910                         fclose(fp);
 911                         fduse--;
 912                 } else {
 913                         PERROR("Port(%d) cannot open index file '%s' to append.\n", p_serial, indexname);
 914                 }
 915
 916                 /* send email with sample*/
 917                 if (p_record_vbox_email[0]) {
 918                         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);
 919                 }
 920         }
 921 }
 922
 923
 924 /*
 925  * recording function
 926  * Records all data from down and from up into one single stream.
 927  * Both streams may have gaps or jitter.
 928  * A Jitter buffer for both streams is used to compensate jitter.
 929  *
 930  * If one stream (dir) received packets, they are stored to a
 931  * buffer to wait for the other stream (dir), so both streams can
 932  * be combined. If the buffer is full, it's content is written
 933  * without mixing stream. (assuming only one stram (dir) exists.)
 934  * A flag is used to indicate what stream is currently in buffer.
 935  *
 936  * NOTE: First stereo sample (odd) is from down, second is from up.
 937  */
 938 void Port::record(unsigned char *data, int length, int dir_fromup)
 939 {
 940         unsigned char write_buffer[1024], *d;
 941         signed short *s;
 942         int free, i, ii;
 943         signed int sample;
 944         int ret;
 945
 946         /* no recording */
 947         if (!p_record || !length)
 948                 return;
 949
 950         /* skip data from local caller (dtmf input) */
 951         if (p_record_skip && !dir_fromup) {
 952                 /* more to skip than we have */
 953                 if (p_record_skip > length) {
 954                         p_record_skip -= length;
 955                         return;
 956                 }
 957                 /* less to skip */
 958                 data += p_record_skip;
 959                 length -= p_record_skip;
 960                 p_record_skip = 0;
 961         }
 962
 963 //printf("dir=%d len=%d\n", dir_fromup, length);
 964
 965         free = ((p_record_buffer_readp - p_record_buffer_writep - 1) & RECORD_BUFFER_MASK);
 966
 967 //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);
 968
 969         /* the buffer stores the same data stream */
 970         if (dir_fromup == p_record_buffer_dir) {
 971 same_again:
 972
 973 //printf("same free=%d length=%d\n", free, length);
 974                 /* first write what we can to the buffer */
 975                 while(free && length) {
 976                         p_record_buffer[p_record_buffer_writep] = audio_law_to_s32[*data++];
 977                         p_record_buffer_writep = (p_record_buffer_writep + 1) & RECORD_BUFFER_MASK;
 978                         free--;
 979                         length--;
 980                 }
 981                 /* all written, so we return */
 982                 if (!length)
 983                         return;
 984                 /* still data left, buffer is full, so we need to write a chunk to file */
 985                 switch(p_record_type) {
 986                         case CODEC_MONO:
 987                         s = (signed short *)write_buffer;
 988                         i = 0;
 989                         while(i < 256) {
 990                                 *s++ = p_record_buffer[p_record_buffer_readp];
 991                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
 992                                 i++;
 993                         }
 994                         ret = fwrite(write_buffer, 512, 1, p_record);
 995                         p_record_length += 512;
 996                         break;
 997
 998                         case CODEC_STEREO:
 999                         s = (signed short *)write_buffer;
1000                         if (p_record_buffer_dir) {
1001                                 i = 0;
1002                                 while(i < 256) {
1003                                         *s++ = 0; /* nothing from down */
1004                                         *s++ = p_record_buffer[p_record_buffer_readp];
1005                                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1006                                         i++;
1007                                 }
1008                         } else {
1009                                 i = 0;
1010                                 while(i < 256) {
1011                                         *s++ = p_record_buffer[p_record_buffer_readp];
1012                                         *s++ = 0; /* nothing from up */
1013                                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1014                                         i++;
1015                                 }
1016                         }
1017                         ret = fwrite(write_buffer, 1024, 1, p_record);
1018                         p_record_length += 1024;
1019                         break;
1020
1021                         case CODEC_8BIT:
1022                         d = write_buffer;
1023                         i = 0;
1024                         while(i < 256) {
1025                                 *d++ = ((unsigned short)(p_record_buffer[p_record_buffer_readp]+0x8000)) >> 8;
1026                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1027                                 i++;
1028                         }
1029                         ret = fwrite(write_buffer, 512, 1, p_record);
1030                         p_record_length += 512;
1031                         break;
1032
1033                         case CODEC_LAW:
1034                         d = write_buffer;
1035                         i = 0;
1036                         while(i < 256) {
1037                                 *d++ = audio_s16_to_law[p_record_buffer[p_record_buffer_readp] & 0xffff];
1038                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1039                                 i++;
1040                         }
1041                         ret = fwrite(write_buffer, 256, 1, p_record);
1042                         p_record_length += 256;
1043                         break;
1044                 }
1045                 /* because we still have data, we write again */
1046                 free += 256;
1047                 goto same_again;
1048         }
1049         /* the buffer stores the other stream */
1050
1051 different_again:
1052         /* if buffer empty, change it */
1053         if (p_record_buffer_readp == p_record_buffer_writep) {
1054                 p_record_buffer_dir = dir_fromup;
1055                 goto same_again;
1056         }
1057         /* how much data can we mix ? */
1058         ii = (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK;
1059         if (length < ii)
1060                 ii = length;
1061
1062         if (ii > 256)
1063                 ii = 256;
1064 //printf("same ii=%d length=%d\n", ii, length);
1065 //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);
1066
1067         /* write data mixed with the buffer */
1068         switch(p_record_type) {
1069                 case CODEC_MONO:
1070                 s = (signed short *)write_buffer;
1071                 i = 0;
1072                 while(i < ii) {
1073                         sample = p_record_buffer[p_record_buffer_readp]
1074                                 + audio_law_to_s32[*data++];
1075                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1076                         if (sample < SHORT_MIN) sample = SHORT_MIN;
1077                         if (sample > SHORT_MAX) sample = SHORT_MAX;
1078                         *s++ = sample;
1079                         i++;
1080                 }
1081                 ret = fwrite(write_buffer, ii<<1, 1, p_record);
1082                 p_record_length += (ii<<1);
1083                 break;
1084
1085                 case CODEC_STEREO:
1086                 s = (signed short *)write_buffer;
1087                 if (p_record_buffer_dir) {
1088                         i = 0;
1089                         while(i < ii) {
1090                                 *s++ = audio_law_to_s32[*data++];
1091                                 *s++ = p_record_buffer[p_record_buffer_readp];
1092                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1093                                 i++;
1094                         }
1095                 } else {
1096                         i = 0;
1097                         while(i < ii) {
1098                                 *s++ = p_record_buffer[p_record_buffer_readp];
1099                                 *s++ = audio_law_to_s32[*data++];
1100                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1101                                 i++;
1102                         }
1103                 }
1104                 ret = fwrite(write_buffer, ii<<2, 1, p_record);
1105                 p_record_length += (ii<<2);
1106                 break;
1107
1108                 case CODEC_8BIT:
1109                 d = write_buffer;
1110                 i = 0;
1111                 while(i < ii) {
1112                         sample = p_record_buffer[p_record_buffer_readp]
1113                                 + audio_law_to_s32[*data++];
1114                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1115                         if (sample < SHORT_MIN) sample = SHORT_MIN;
1116                         if (sample > SHORT_MAX) sample = SHORT_MAX;
1117                         *d++ = (sample+0x8000) >> 8;
1118                         i++;
1119                 }
1120                 ret = fwrite(write_buffer, ii, 1, p_record);
1121                 p_record_length += ii;
1122                 break;
1123
1124                 case CODEC_LAW:
1125                 d = write_buffer;
1126                 i = 0;
1127                 while(i < ii) {
1128                         sample = p_record_buffer[p_record_buffer_readp]
1129                                 + audio_law_to_s32[*data++];
1130                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1131                         if (sample < SHORT_MIN) sample = SHORT_MIN;
1132                         if (sample > SHORT_MAX) sample = SHORT_MAX;
1133                         *d++ = audio_s16_to_law[sample & 0xffff];
1134                         i++;
1135                 }
1136                 ret = fwrite(write_buffer, ii, 1, p_record);
1137                 p_record_length += ii;
1138                 break;
1139         }
1140         length -= ii;
1141         /* still data */
1142         if (length)
1143                 goto different_again;
1144         /* no data (maybe buffer) */
1145         return;
1146
1147 }
1148
1149 void Port::update_rxoff(void)
1150 {
1151 }
1152
1153 void Port::update_load(void)
1154 {
1155 }
1156