1 /*****************************************************************************\
5 **---------------------------------------------------------------------------**
6 ** Copyright: Andreas Eversberg **
10 \*****************************************************************************/
14 Audio flow has two ways:
16 * from channel to the upper layer
17 -> sound from mISDN channel
18 -> announcement from vbox channel
20 * from the upper layer to the channel
21 -> sound from remote channel
25 -> if local or remote channel is not mISDN
26 -> if call is recorded (vbox)
32 -> audio from upper layer is buffered for later transmission to channel
34 -> buffered audio from upper layer or tones are transmitted via system clock
36 -> rx-data from port to record() and upper layer
37 -> tx-data from port (dsp) to record()
39 -> streaming announcement to upper layer
40 -> recording announcement
41 * VboxPort::message_epoint
42 -> recording audio message from upper layer
50 #define SHORT_MIN -32768
51 #define SHORT_MAX 32767
53 class Port *port_first = NULL;
55 unsigned long port_serial = 1; /* must be 1, because 0== no port */
58 /* free epointlist relation
60 void Port::free_epointlist(struct epoint_list *epointlist)
62 struct epoint_list *temp, **tempp;
65 tempp = &p_epointlist;
68 if (temp == epointlist)
76 PERROR("SOFTWARE ERROR: epointlist not in port's list.\n");
83 PDEBUG(DEBUG_EPOINT, "PORT(%d) removed epoint from port\n", p_serial);
84 FREE(temp, sizeof(struct epoint_list));
89 void Port::free_epointid(unsigned long epoint_id)
91 struct epoint_list *temp, **tempp;
94 tempp = &p_epointlist;
97 if (temp->epoint_id == epoint_id)
105 PERROR("epoint_id not in port's list.\n");
112 PDEBUG(DEBUG_EPOINT, "PORT(%d) removed epoint from port\n", p_serial);
113 FREE(temp, sizeof(struct epoint_list));
118 /* create new epointlist relation
120 struct epoint_list *Port::epointlist_new(unsigned long epoint_id)
122 struct epoint_list *epointlist, **epointlistpointer;
124 /* epointlist structure */
125 epointlist = (struct epoint_list *)MALLOC(sizeof(struct epoint_list));
127 FATAL("No memory for epointlist\n");
129 PDEBUG(DEBUG_EPOINT, "PORT(%d) allocating epoint_list.\n", p_serial);
131 /* add epoint_list to chain */
132 epointlist->next = NULL;
133 epointlistpointer = &p_epointlist;
134 while(*epointlistpointer)
135 epointlistpointer = &((*epointlistpointer)->next);
136 *epointlistpointer = epointlist;
139 epointlist->epoint_id = epoint_id;
140 epointlist->active = 1;
149 Port::Port(int type, char *portname, struct port_settings *settings)
151 class Port *temp, **tempp;
153 PDEBUG(DEBUG_PORT, "new port of type %d, name '%s'\n", type, portname);
155 /* initialize object */
157 memcpy(&p_settings, settings, sizeof(struct port_settings));
160 memset(&p_settings, 0, sizeof(p_settings));
161 SCPY(p_settings.tones_dir, options.tones_dir);
163 SCPY(p_name, portname);
164 SCPY(p_tone_dir, p_settings.tones_dir); // just to be sure
166 p_serial = port_serial++;
168 p_tone_fetched = NULL;
169 p_tone_name[0] = '\0';
170 p_state = PORT_STATE_IDLE;
172 memset(&p_callerinfo, 0, sizeof(p_callerinfo));
173 memset(&p_dialinginfo, 0, sizeof(p_dialinginfo));
174 memset(&p_connectinfo, 0, sizeof(p_connectinfo));
175 memset(&p_redirinfo, 0, sizeof(p_redirinfo));
176 memset(&p_capainfo, 0, sizeof(p_capainfo));
184 p_record_filename[0] = '\0';
185 p_record_buffer_readp = 0;
186 p_record_buffer_writep = 0;
187 p_record_buffer_dir = 0;
189 /* append port to chain */
209 class Port *temp, **tempp;
210 struct message *message;
217 PDEBUG(DEBUG_PORT, "removing port of type %d, name '%s'\n", p_type, p_name);
219 /* disconnect port from endpoint */
222 /* send disconnect */
223 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
224 message->param.disconnectinfo.cause = 16;
225 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
226 message_put(message);
227 /* remove endpoint */
228 free_epointlist(p_epointlist);
231 /* remove port from chain */
242 FATAL("PORT(%s) port not in port's list.\n", p_name);
246 /* close open tones file */
253 p_tone_fetched = NULL;
258 /* set new endpoint state
260 void Port::new_state(int state)
262 PDEBUG(DEBUG_PORT, "PORT(%s) new state %s --> %s\n", p_name, state_name[p_state], state_name[state]);
268 * find the port with port_id
270 class Port *find_port_id(unsigned long port_id)
272 class Port *port = port_first;
276 //printf("comparing: '%s' with '%s'\n", name, port->name);
277 if (port->p_serial == port_id)
289 void Port::set_echotest(int echotest)
291 p_echotest = echotest;
296 * set the file in the tone directory with the given name
298 void Port::set_tone(char *dir, char *name)
306 /* no counter, no eof, normal speed */
310 p_tone_codec = CODEC_LAW;
318 p_tone_fetched = NULL;
324 SPRINT(p_tone_name, "%s", name);
325 p_tone_dir[0] = '\0';
328 SCPY(p_tone_dir, dir);
329 SCPY(p_tone_name, name);
333 p_tone_name[0]= '\0';
338 if (!!strncmp(name,"cause_",6))
341 /* now we check if the cause exists, otherwhise we use error tone. */
342 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, 0, 0)))
344 p_tone_fetched = NULL;
347 SPRINT(filename, "%s_loop", p_tone_name);
348 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, 0, 0)))
350 p_tone_fetched = NULL;
353 SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
354 if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
359 SPRINT(filename, "%s/%s/%s_loop", INSTALL_DATA, p_tone_dir, p_tone_name);
360 if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
366 if (!strcmp(name,"cause_00") || !strcmp(name,"cause_10"))
368 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using release tone\n", p_name, name+6);
369 SPRINT(p_tone_name,"release");
371 if (!strcmp(name,"cause_11"))
373 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using busy tone\n", p_name, name+6);
374 SPRINT(p_tone_name,"busy");
377 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using error tone\n", p_name, name+6);
378 SPRINT(p_tone_name,"error");
384 * set the file in the tone directory for vbox playback
385 * also set the play_eof-flag
387 void Port::set_vbox_tone(char *dir, char *name)
393 p_tone_codec = CODEC_LAW;
402 p_tone_fetched = NULL;
404 SPRINT(p_tone_dir, dir);
405 SPRINT(p_tone_name, name);
407 /* now we check if the cause exists, otherwhise we use error tone. */
410 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, &p_tone_size, &p_tone_left)))
412 PDEBUG(DEBUG_PORT, "PORT(%s) opening fetched tone: %s\n", p_name, p_tone_name);
415 SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
416 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
419 PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
424 SPRINT(filename, "%s", p_tone_name);
425 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
428 PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
436 * set the file in the given directory for vbox playback
437 * also set the eof-flag
438 * also set the counter-flag
440 void Port::set_vbox_play(char *name, int offset)
443 struct message *message;
445 /* use ser_box_tone() */
446 set_vbox_tone("", name);
456 /* send message with counter value */
457 if (p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
459 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
460 message->param.counter.current = offset;
461 message->param.counter.max = size;
462 message_put(message);
469 * set the playback speed (for recording playback with different speeds)
471 void Port::set_vbox_speed(int speed)
473 /* enable vbox play mode */
474 p_tone_speed = speed;
478 * read from the given file as specified in port_set_tone and return sample data
479 * if the tone ends, the result may be less samples than requested
481 int Port::read_audio(unsigned char *buffer, int length)
484 int nodata=0; /* to detect 0-length files and avoid endless reopen */
486 int tone_left_before; /* temp variable to determine the change in p_tone_left */
494 /* if there is no tone set, use silence */
498 /* if the file pointer is not open, we open it */
499 if (p_tone_fh<0 && p_tone_fetched==NULL)
503 SPRINT(filename, "%s", p_tone_name);
504 /* if file does not exist */
505 if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
507 SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
508 /* if file does not exist */
509 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
511 PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
518 SPRINT(filename, "%s", p_tone_name);
519 /* if file does not exist */
520 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
522 PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
527 PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
531 /* file descriptor is open read data */
532 tone_left_before = p_tone_left;
535 l = read_tone(p_tone_fh, buffer, p_tone_codec, len, p_tone_size, &p_tone_left, p_tone_speed);
536 if (l<0 || l>len) /* paranoia */
543 l = read_tone_fetched(&p_tone_fetched, buffer, len, p_tone_size, &p_tone_left, p_tone_speed);
544 if (l<0 || l>len) /* paranoia */
550 /* if counter is enabled, we check if we have a change */
551 if (p_tone_counter && p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
553 /* if we jumed to the next second */
554 if (((p_tone_size-p_tone_left)/8000) != (p_tone_size-tone_left_before)/8000)
556 //printf("\nsize=%d left=%d\n\n",p_tone_size,p_tone_left);
557 struct message *message;
558 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
559 message->param.counter.current = (p_tone_size-p_tone_left)/8000;
560 message->param.counter.max = -1;
561 message_put(message);
574 p_tone_fetched = NULL;
579 /* if the file has 0-length */
582 PDEBUG(DEBUG_PORT, "PORT(%s) 0-length loop: %s\n", p_name, filename);
588 /* if eof is reached, or if the normal file cannot be opened, continue with the loop file if possible */
590 if (p_tone_eof && ACTIVE_EPOINT(p_epointlist))
592 struct message *message;
593 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_EOF);
594 message_put(message);
599 /* if file does not exist */
600 SPRINT(filename, "%s_loop", p_tone_name);
601 if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
603 SPRINT(filename, "%s/%s/%s_loop", INSTALL_DATA, p_tone_dir, p_tone_name);
604 /* if file does not exist */
605 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
607 PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
608 p_tone_dir[0] = '\0';
609 p_tone_name[0] = '\0';
616 SPRINT(filename, "%s_loop", p_tone_name);
617 /* if file does not exist */
618 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
620 PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
621 p_tone_dir[0] = '\0';
622 p_tone_name[0] = '\0';
628 PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
630 /* now we have opened the loop */
636 * process transmission clock */
637 int Port::handler(void)
642 /* endpoint sends messages to the port
643 * this is called by the message_epoint inherited by child classes
644 * therefor a return=1 means: stop, no more processing
646 //extern struct message *dddebug;
647 int Port::message_epoint(unsigned long epoint_id, int message_id, union parameter *param)
649 /* check if we got audio data from one remote port */
652 case MESSAGE_TONE: /* play tone */
653 PDEBUG(DEBUG_PORT, "PORT(%s) isdn port with (caller id %s) setting tone '%s' dir '%s'\n", p_name, p_callerinfo.id, param->tone.name, param->tone.dir);
654 set_tone(param->tone.dir,param->tone.name);
657 case MESSAGE_VBOX_TONE: /* play tone of answering machine */
658 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine tone '%s' '%s'\n", p_name, param->tone.dir, param->tone.name);
659 set_vbox_tone(param->tone.dir, param->tone.name);
662 case MESSAGE_VBOX_PLAY: /* play recording of answering machine */
663 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine file to play '%s' (offset %d seconds)\n", p_name, param->play.file, param->play.offset);
664 set_vbox_play(param->play.file, param->play.offset);
667 case MESSAGE_VBOX_PLAY_SPEED: /* set speed of playback (recording of answering machine) */
668 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine playback speed %d (times)\n", p_name, param->speed);
669 set_vbox_speed(param->speed);
678 /* wave header structure */
680 unsigned short stereo; /* 1 = mono, 2 = stereo */
681 unsigned short channels; /* number of channels */
682 unsigned long sample_rate; /* sample rate */
683 unsigned long data_rate; /* data rate */
684 unsigned short bytes_sample; /* bytes per sample (all channels) */
685 unsigned short bits_sample; /* bits per sample (one channel) */
690 * open record file (actually a wave file with empty header which will be
691 * written before close, because we do not know the size yet)
692 * type=1 record annoucement, type=0 record audio stream, type=2 record vbox
694 int Port::open_record(int type, int vbox, int skip, char *extension, int anon_ignore, char *vbox_email, int vbox_email_file)
696 /* RIFFxxxxWAVEfmt xxxx(fmt-size)dataxxxx... */
697 char dummyheader[8+4+8+sizeof(fmt)+8];
702 PERROR("Port(%d) not an extension\n", p_serial);
705 SCPY(p_record_extension, extension);
706 p_record_anon_ignore = anon_ignore;
707 SCPY(p_record_vbox_email, vbox_email);
708 p_record_vbox_email_file = vbox_email_file;
712 PERROR("Port(%d) already recording\n", p_serial);
717 SPRINT(filename, "%s/%s/%s/vbox", INSTALL_DATA, options.extensions_dir, p_record_extension);
719 SPRINT(filename, "%s/%s/%s/recordings", INSTALL_DATA, options.extensions_dir, p_record_extension);
720 if (mkdir(filename, 0755) < 0)
724 PERROR("Port(%d) cannot create directory '%s'\n", p_serial, filename);
730 UPRINT(strchr(filename,'\0'), "/announcement");
732 UPRINT(strchr(filename,'\0'), "/%04d-%02d-%02d_%02d%02d%02d", now_tm->tm_year+1900, now_tm->tm_mon+1, now_tm->tm_mday, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
735 p_record_vbox_year = now_tm->tm_year;
736 p_record_vbox_mon = now_tm->tm_mon;
737 p_record_vbox_mday = now_tm->tm_mday;
738 p_record_vbox_hour = now_tm->tm_hour;
739 p_record_vbox_min = now_tm->tm_min;
742 /* check, if file exists (especially when an extension calls the same extension) */
744 if ((p_record = fopen(filename, "r")))
747 SCAT(filename, "_2nd");
750 p_record = fopen(filename, "w");
753 PERROR("Port(%d) cannot record because file cannot be opened '%s'\n", p_serial, filename);
758 p_record_type = type;
759 p_record_vbox = vbox;
760 p_record_skip = skip;
762 switch(p_record_type)
767 fwrite(dummyheader, sizeof(dummyheader), 1, p_record);
773 UCPY(p_record_filename, filename);
775 PDEBUG(DEBUG_PORT, "Port(%d) recording started with file name '%s'\n", p_serial, filename);
781 * close the recoding file, put header in front and rename
783 void Port::close_record(int beep, int mute)
785 static signed short beep_mono[256];
786 unsigned long size, wsize;
788 char filename[512], indexname[512];
791 char number[256], callerid[256];
793 struct caller_info callerinfo;
794 char *valid_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_.-!$%&/()=+*;~";
798 PDEBUG(DEBUG_PORT, "data still in record buffer: %d (dir %d)\n", (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK, p_record_buffer_dir);
800 memcpy(&callerinfo, &p_callerinfo, sizeof(struct caller_info));
801 // apply_callerid_restriction(p_record_anon_ignore, callerinfo.id, &callerinfo.ntype, &callerinfo.present, &callerinfo.screen, callerinfo.extension, callerinfo.name);
803 SCPY(number, p_dialinginfo.id);
804 SCPY(callerid, numberrize_callerinfo(callerinfo.id, callerinfo.ntype));
805 if (callerid[0] == '\0')
807 if (callerinfo.present == INFO_PRESENT_RESTRICTED)
808 UCPY(callerid,"anonymous");
810 UCPY(callerid,"unknown");
813 /* change verboten digits */
815 while((p=strchr(p,'*')))
818 while((p=strchr(p,'/')))
821 while((p=strchr(p,'*')))
824 while((p=strchr(p,'/')))
827 ii = strlen(callerid);
830 if (!strchr(valid_chars, callerid[i]))
838 if (!strchr(valid_chars, number[i]))
844 if (mute && p_record_type==CODEC_MONO)
849 fseek(p_record, -(i<<1), SEEK_END);
850 p_record_length -= (i<<1);
852 /* add beep to the end of recording */
853 if (beep && p_record_type==CODEC_MONO)
858 beep_mono[i] = (signed short)(sin((double)i / 5.688888888889 * 2.0 * 3.1415927) * 2000.0);
864 fwrite(beep_mono, sizeof(beep_mono), 1, p_record);
865 i += sizeof(beep_mono);
866 p_record_length += sizeof(beep_mono);
870 /* complete header */
871 switch(p_record_type)
877 fprintf(p_record, "cue %c%c%c%c%c%c%c%c", 4, 0, 0, 0, 0,0,0,0);
880 fprintf(p_record, "LIST%c%c%c%cadtl", 4, 0, 0, 0);
883 fseek(p_record, 0, SEEK_SET);
885 /* WAVEfmt xxxx(fmt-size)dataxxxx[data]cue xxxx0000LISTxxxxadtl*/
886 size = p_record_length;
887 wsize = 4+8+sizeof(fmt)+8+size+8+4+8+4;
890 fprintf(p_record, "RIFF%c%c%c%c", (unsigned char)(wsize&0xff), (unsigned char)((wsize>>8)&0xff), (unsigned char)((wsize>>16)&0xff), (unsigned char)(wsize>>24));
893 fprintf(p_record, "WAVE");
896 fprintf(p_record, "fmt %c%c%c%c", sizeof(fmt), 0, 0, 0);
897 switch(p_record_type)
902 fmt.sample_rate = 8000; /* samples/sec */
903 fmt.data_rate = 16000; /* full data rate */
904 fmt.bytes_sample = 2; /* all channels */
905 fmt.bits_sample = 16; /* one channel */
911 fmt.sample_rate = 8000; /* samples/sec */
912 fmt.data_rate = 32000; /* full data rate */
913 fmt.bytes_sample = 4; /* all channels */
914 fmt.bits_sample = 16; /* one channel */
920 fmt.sample_rate = 8000; /* samples/sec */
921 fmt.data_rate = 8000; /* full data rate */
922 fmt.bytes_sample = 1; /* all channels */
923 fmt.bits_sample = 8; /* one channel */
926 fwrite(&fmt, sizeof(fmt), 1, p_record);
929 fprintf(p_record, "data%c%c%c%c", (unsigned char)(size&0xff), (unsigned char)((size>>8)&0xff), (unsigned char)((size>>16)&0xff), (unsigned char)(size>>24));
932 if (p_record_vbox == 1)
933 SPRINT(filename, "%s.wav", p_record_filename);
935 SPRINT(filename, "%s_%s-%s.wav", p_record_filename, callerid, number);
940 if (p_record_vbox == 1)
941 SPRINT(filename, "%s.isdn", p_record_filename);
943 SPRINT(filename, "%s_%s-%s.isdn", p_record_filename, callerid, number);
951 if (rename(p_record_filename, filename) < 0)
953 PERROR("Port(%d) cannot rename from '%s' to '%s'\n", p_serial, p_record_filename, filename);
957 PDEBUG(DEBUG_PORT, "Port(%d) recording is written and renamed to '%s' and must have the following size:%lu raw:%lu samples:%lu\n", p_serial, filename, wsize+8, size, size>>1);
959 if (p_record_vbox == 2)
961 SPRINT(indexname, "%s/%s/%s/vbox/index", INSTALL_DATA, options.extensions_dir, p_record_extension);
962 if ((fp = fopen(indexname,"a")))
966 /* remove path from file name */
968 while(strchr(p, '/'))
969 p = strchr(p, '/')+1;
970 fprintf(fp, "%s %d %d %d %d %d %s\n", p, p_record_vbox_year, p_record_vbox_mon, p_record_vbox_mday, p_record_vbox_hour, p_record_vbox_min, callerid);
976 PERROR("Port(%d) cannot open index file '%s' to append.\n", p_serial, indexname);
979 /* send email with sample*/
980 if (p_record_vbox_email[0])
982 send_mail(p_record_vbox_email_file?filename:(char *)"", callerid, callerinfo.extension, callerinfo.name, p_record_vbox_email, p_record_vbox_year, p_record_vbox_mon, p_record_vbox_mday, p_record_vbox_hour, p_record_vbox_min, p_record_extension);
990 * Records all data from down and from up into one single stream.
991 * Both streams may have gaps or jitter.
992 * A Jitter buffer for both streams is used to compensate jitter.
994 * If one stream (dir) received packets, they are stored to a
995 * buffer to wait for the other stream (dir), so both streams can
996 * be combined. If the buffer is full, it's content is written
997 * without mixing stream. (assuming only one stram (dir) exists.)
998 * A flag is used to indicate what stream is currently in buffer.
1000 * NOTE: First stereo sample (odd) is from down, second is from up.
1002 void Port::record(unsigned char *data, int length, int dir_fromup)
1004 unsigned char write_buffer[1024], *d;
1010 if (!p_record || !length)
1013 /* skip data from local caller (dtmf input) */
1014 if (p_record_skip && !dir_fromup)
1016 /* more to skip than we have */
1017 if (p_record_skip > length)
1019 p_record_skip -= length;
1023 data += p_record_skip;
1024 length -= p_record_skip;
1028 //printf("dir=%d len=%d\n", dir_fromup, length);
1030 free = ((p_record_buffer_readp - p_record_buffer_writep - 1) & RECORD_BUFFER_MASK);
1032 //PDEBUG(DEBUG_PORT, "record(data,%d,%d): free=%d, p_record_buffer_dir=%d, p_record_buffer_readp=%d, p_record_buffer_writep=%d.\n", length, dir_fromup, free, p_record_buffer_dir, p_record_buffer_readp, p_record_buffer_writep);
1034 /* the buffer stores the same data stream */
1035 if (dir_fromup == p_record_buffer_dir)
1039 //printf("same free=%d length=%d\n", free, length);
1040 /* first write what we can to the buffer */
1041 while(free && length)
1043 p_record_buffer[p_record_buffer_writep] = audio_law_to_s32[*data++];
1044 p_record_buffer_writep = (p_record_buffer_writep + 1) & RECORD_BUFFER_MASK;
1048 /* all written, so we return */
1051 /* still data left, buffer is full, so we need to write a chunk to file */
1052 switch(p_record_type)
1055 s = (signed short *)write_buffer;
1059 *s++ = p_record_buffer[p_record_buffer_readp];
1060 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1063 fwrite(write_buffer, 512, 1, p_record);
1064 p_record_length += 512;
1068 s = (signed short *)write_buffer;
1069 if (p_record_buffer_dir)
1074 *s++ = 0; /* nothing from down */
1075 *s++ = p_record_buffer[p_record_buffer_readp];
1076 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1084 *s++ = p_record_buffer[p_record_buffer_readp];
1085 *s++ = 0; /* nothing from up */
1086 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1090 fwrite(write_buffer, 1024, 1, p_record);
1091 p_record_length += 1024;
1099 *d++ = ((unsigned short)(p_record_buffer[p_record_buffer_readp]+0x8000)) >> 8;
1100 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1103 fwrite(write_buffer, 512, 1, p_record);
1104 p_record_length += 512;
1112 *d++ = audio_s16_to_law[p_record_buffer[p_record_buffer_readp] & 0xffff];
1113 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1116 fwrite(write_buffer, 256, 1, p_record);
1117 p_record_length += 256;
1120 /* because we still have data, we write again */
1124 /* the buffer stores the other stream */
1127 /* if buffer empty, change it */
1128 if (p_record_buffer_readp == p_record_buffer_writep)
1130 p_record_buffer_dir = dir_fromup;
1133 /* how much data can we mix ? */
1134 ii = (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK;
1140 //printf("same ii=%d length=%d\n", ii, length);
1141 //PDEBUG(DEBUG_PORT, "record(data,%d,%d): free=%d, p_record_buffer_dir=%d, p_record_buffer_readp=%d, p_record_buffer_writep=%d: mixing %d bytes.\n", length, dir_fromup, free, p_record_buffer_dir, p_record_buffer_readp, p_record_buffer_writep, ii);
1143 /* write data mixed with the buffer */
1144 switch(p_record_type)
1147 s = (signed short *)write_buffer;
1151 sample = p_record_buffer[p_record_buffer_readp]
1152 + audio_law_to_s32[*data++];
1153 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1154 if (sample < SHORT_MIN) sample = SHORT_MIN;
1155 if (sample > SHORT_MAX) sample = SHORT_MAX;
1159 fwrite(write_buffer, ii<<1, 1, p_record);
1160 p_record_length += (ii<<1);
1164 s = (signed short *)write_buffer;
1165 if (p_record_buffer_dir)
1170 *s++ = audio_law_to_s32[*data++];
1171 *s++ = p_record_buffer[p_record_buffer_readp];
1172 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1180 *s++ = p_record_buffer[p_record_buffer_readp];
1181 *s++ = audio_law_to_s32[*data++];
1182 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1186 fwrite(write_buffer, ii<<2, 1, p_record);
1187 p_record_length += (ii<<2);
1195 sample = p_record_buffer[p_record_buffer_readp]
1196 + audio_law_to_s32[*data++];
1197 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1198 if (sample < SHORT_MIN) sample = SHORT_MIN;
1199 if (sample > SHORT_MAX) sample = SHORT_MAX;
1200 *d++ = (sample+0x8000) >> 8;
1203 fwrite(write_buffer, ii, 1, p_record);
1204 p_record_length += ii;
1212 sample = p_record_buffer[p_record_buffer_readp]
1213 + audio_law_to_s32[*data++];
1214 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1215 if (sample < SHORT_MIN) sample = SHORT_MIN;
1216 if (sample > SHORT_MAX) sample = SHORT_MAX;
1217 *d++ = audio_s16_to_law[sample & 0xffff];
1220 fwrite(write_buffer, ii, 1, p_record);
1221 p_record_length += ii;
1227 goto different_again;
1228 /* no data (maybe buffer) */