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 int 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 int 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 int 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, const 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 lcr_msg *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 int 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(const char *dir, const char *name)
307 /* if tones is jingle, store next tone */
308 if ((p_tone_fh >= 0 || p_tone_fetched)
309 && (!strcmp(p_tone_name, "left") || !strcmp(p_tone_name, "joined")))
311 SCPY(p_tone_dir, dir);
312 SCPY(p_tone_name, name);
317 /* no counter, no eof, normal speed */
321 p_tone_codec = CODEC_LAW;
329 p_tone_fetched = NULL;
335 SPRINT(p_tone_name, "%s", name);
336 p_tone_dir[0] = '\0';
339 SCPY(p_tone_dir, dir);
340 SCPY(p_tone_name, name);
344 p_tone_name[0]= '\0';
349 if (!!strncmp(name,"cause_",6))
352 /* now we check if the cause exists, otherwhise we use error tone. */
353 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, 0, 0)))
355 p_tone_fetched = NULL;
358 SPRINT(filename, "%s_loop", p_tone_name);
359 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, 0, 0)))
361 p_tone_fetched = NULL;
364 SPRINT(filename, "%s/%s/%s", SHARE_DATA, p_tone_dir, p_tone_name);
365 if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
370 SPRINT(filename, "%s/%s/%s_loop", SHARE_DATA, p_tone_dir, p_tone_name);
371 if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
377 if (!strcmp(name,"cause_00") || !strcmp(name,"cause_10"))
379 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using release tone\n", p_name, name+6);
380 SPRINT(p_tone_name,"release");
382 if (!strcmp(name,"cause_11"))
384 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using busy tone\n", p_name, name+6);
385 SPRINT(p_tone_name,"busy");
388 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using error tone\n", p_name, name+6);
389 SPRINT(p_tone_name,"error");
395 * set the file in the tone directory for vbox playback
396 * also set the play_eof-flag
398 void Port::set_vbox_tone(const char *dir, const char *name)
404 p_tone_codec = CODEC_LAW;
413 p_tone_fetched = NULL;
415 SPRINT(p_tone_dir, dir);
416 SPRINT(p_tone_name, name);
418 /* now we check if the cause exists, otherwhise we use error tone. */
421 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, &p_tone_size, &p_tone_left)))
423 PDEBUG(DEBUG_PORT, "PORT(%s) opening fetched tone: %s\n", p_name, p_tone_name);
426 SPRINT(filename, "%s/%s/%s", SHARE_DATA, p_tone_dir, p_tone_name);
427 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
430 PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
435 SPRINT(filename, "%s", p_tone_name);
436 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
439 PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
447 * set the file in the given directory for vbox playback
448 * also set the eof-flag
449 * also set the counter-flag
451 void Port::set_vbox_play(const char *name, int offset)
453 struct lcr_msg *message;
455 /* use ser_box_tone() */
456 set_vbox_tone("", name);
466 /* send message with counter value */
467 if (p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
469 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
470 message->param.counter.current = offset;
471 message->param.counter.max = p_tone_size;
472 message_put(message);
479 * set the playback speed (for recording playback with different speeds)
481 void Port::set_vbox_speed(int speed)
483 /* enable vbox play mode */
484 p_tone_speed = speed;
488 * read from the given file as specified in port_set_tone and return sample data
489 * if the tone ends, the result may be less samples than requested
491 int Port::read_audio(unsigned char *buffer, int length)
494 int nodata=0; /* to detect 0-length files and avoid endless reopen */
496 int tone_left_before; /* temp variable to determine the change in p_tone_left */
504 /* if there is no tone set, use silence */
508 /* if the file pointer is not open, we open it */
509 if (p_tone_fh<0 && p_tone_fetched==NULL)
513 SPRINT(filename, "%s", p_tone_name);
514 /* if file does not exist */
515 if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
517 SPRINT(filename, "%s/%s/%s", SHARE_DATA, p_tone_dir, p_tone_name);
518 /* if file does not exist */
519 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
521 PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
528 SPRINT(filename, "%s", p_tone_name);
529 /* if file does not exist */
530 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
532 PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
537 PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
541 /* file descriptor is open read data */
542 tone_left_before = p_tone_left;
545 l = read_tone(p_tone_fh, buffer, p_tone_codec, len, p_tone_size, &p_tone_left, p_tone_speed);
546 if (l<0 || l>len) /* paranoia */
553 l = read_tone_fetched(&p_tone_fetched, buffer, len, p_tone_size, &p_tone_left, p_tone_speed);
554 if (l<0 || l>len) /* paranoia */
560 /* if counter is enabled, we check if we have a change */
561 if (p_tone_counter && p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
563 /* if we jumed to the next second */
564 if (((p_tone_size-p_tone_left)/8000) != (p_tone_size-tone_left_before)/8000)
566 //printf("\nsize=%d left=%d\n\n",p_tone_size,p_tone_left);
567 struct lcr_msg *message;
568 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
569 message->param.counter.current = (p_tone_size-p_tone_left)/8000;
570 message->param.counter.max = -1;
571 message_put(message);
584 p_tone_fetched = NULL;
589 /* if the file has 0-length */
592 PDEBUG(DEBUG_PORT, "PORT(%s) 0-length loop: %s\n", p_name, filename);
598 /* if eof is reached, or if the normal file cannot be opened, continue with the loop file if possible */
600 if (p_tone_eof && ACTIVE_EPOINT(p_epointlist))
602 struct lcr_msg *message;
603 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_EOF);
604 message_put(message);
609 /* if file does not exist */
610 SPRINT(filename, "%s_loop", p_tone_name);
611 if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
613 SPRINT(filename, "%s/%s/%s_loop", SHARE_DATA, p_tone_dir, p_tone_name);
614 /* if file does not exist */
615 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
617 PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
618 p_tone_dir[0] = '\0';
619 p_tone_name[0] = '\0';
626 SPRINT(filename, "%s_loop", p_tone_name);
627 /* if file does not exist */
628 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
630 PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
631 p_tone_dir[0] = '\0';
632 p_tone_name[0] = '\0';
638 PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
640 /* now we have opened the loop */
646 * process transmission clock */
647 int Port::handler(void)
652 /* endpoint sends messages to the port
653 * this is called by the message_epoint inherited by child classes
654 * therefor a return=1 means: stop, no more processing
656 //extern struct lcr_msg *dddebug;
657 int Port::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
659 /* check if we got audio data from one remote port */
662 case MESSAGE_TONE: /* play tone */
663 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);
664 set_tone(param->tone.dir,param->tone.name);
667 case MESSAGE_VBOX_TONE: /* play tone of answering machine */
668 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine tone '%s' '%s'\n", p_name, param->tone.dir, param->tone.name);
669 set_vbox_tone(param->tone.dir, param->tone.name);
672 case MESSAGE_VBOX_PLAY: /* play recording of answering machine */
673 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine file to play '%s' (offset %d seconds)\n", p_name, param->play.file, param->play.offset);
674 set_vbox_play(param->play.file, param->play.offset);
677 case MESSAGE_VBOX_PLAY_SPEED: /* set speed of playback (recording of answering machine) */
678 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine playback speed %d (times)\n", p_name, param->speed);
679 set_vbox_speed(param->speed);
688 /* wave header structure */
690 unsigned short stereo; /* 1 = mono, 2 = stereo */
691 unsigned short channels; /* number of channels */
692 unsigned int sample_rate; /* sample rate */
693 unsigned int data_rate; /* data rate */
694 unsigned short bytes_sample; /* bytes per sample (all channels) */
695 unsigned short bits_sample; /* bits per sample (one channel) */
700 * open record file (actually a wave file with empty header which will be
701 * written before close, because we do not know the size yet)
702 * type=1 record annoucement, type=0 record audio stream, type=2 record vbox
704 int Port::open_record(int type, int vbox, int skip, char *extension, int anon_ignore, const char *vbox_email, int vbox_email_file)
706 /* RIFFxxxxWAVEfmt xxxx(fmt-size)dataxxxx... */
707 char dummyheader[8+4+8+sizeof(fmt)+8];
712 PERROR("Port(%d) not an extension\n", p_serial);
715 SCPY(p_record_extension, extension);
716 p_record_anon_ignore = anon_ignore;
717 SCPY(p_record_vbox_email, vbox_email);
718 p_record_vbox_email_file = vbox_email_file;
722 PERROR("Port(%d) already recording\n", p_serial);
727 SPRINT(filename, "%s/%s/vbox", EXTENSION_DATA, p_record_extension);
729 SPRINT(filename, "%s/%s/recordings", EXTENSION_DATA, p_record_extension);
730 if (mkdir(filename, 0755) < 0)
734 PERROR("Port(%d) cannot create directory '%s'\n", p_serial, filename);
740 UPRINT(strchr(filename,'\0'), "/announcement");
742 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);
745 p_record_vbox_year = now_tm->tm_year;
746 p_record_vbox_mon = now_tm->tm_mon;
747 p_record_vbox_mday = now_tm->tm_mday;
748 p_record_vbox_hour = now_tm->tm_hour;
749 p_record_vbox_min = now_tm->tm_min;
752 /* check, if file exists (especially when an extension calls the same extension) */
754 if ((p_record = fopen(filename, "r")))
757 SCAT(filename, "_2nd");
760 p_record = fopen(filename, "w");
763 PERROR("Port(%d) cannot record because file cannot be opened '%s'\n", p_serial, filename);
768 p_record_type = type;
769 p_record_vbox = vbox;
770 p_record_skip = skip;
772 switch(p_record_type)
777 fwrite(dummyheader, sizeof(dummyheader), 1, p_record);
783 UCPY(p_record_filename, filename);
785 PDEBUG(DEBUG_PORT, "Port(%d) recording started with file name '%s'\n", p_serial, filename);
791 * close the recoding file, put header in front and rename
793 void Port::close_record(int beep, int mute)
795 static signed short beep_mono[256];
796 unsigned int size = 0, wsize = 0;
798 char filename[512], indexname[512];
801 char number[256], callerid[256];
803 struct caller_info callerinfo;
804 const char *valid_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_.-!$%&/()=+*;~";
808 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);
810 memcpy(&callerinfo, &p_callerinfo, sizeof(struct caller_info));
811 // apply_callerid_restriction(p_record_anon_ignore, callerinfo.id, &callerinfo.ntype, &callerinfo.present, &callerinfo.screen, callerinfo.extension, callerinfo.name);
813 SCPY(number, p_dialinginfo.id);
814 SCPY(callerid, numberrize_callerinfo(callerinfo.id, callerinfo.ntype, options.national, options.international));
815 if (callerid[0] == '\0')
817 if (callerinfo.present == INFO_PRESENT_RESTRICTED)
818 UCPY(callerid,"anonymous");
820 UCPY(callerid,"unknown");
823 /* change verboten digits */
825 while((p=strchr(p,'*')))
828 while((p=strchr(p,'/')))
831 while((p=strchr(p,'*')))
834 while((p=strchr(p,'/')))
837 ii = strlen(callerid);
840 if (!strchr(valid_chars, callerid[i]))
848 if (!strchr(valid_chars, number[i]))
854 if (mute && p_record_type==CODEC_MONO)
859 fseek(p_record, -(i<<1), SEEK_END);
860 p_record_length -= (i<<1);
862 /* add beep to the end of recording */
863 if (beep && p_record_type==CODEC_MONO)
868 beep_mono[i] = (signed short)(sin((double)i / 5.688888888889 * 2.0 * 3.1415927) * 2000.0);
874 fwrite(beep_mono, sizeof(beep_mono), 1, p_record);
875 i += sizeof(beep_mono);
876 p_record_length += sizeof(beep_mono);
880 /* complete header */
881 switch(p_record_type)
887 fprintf(p_record, "cue %c%c%c%c%c%c%c%c", 4, 0, 0, 0, 0,0,0,0);
890 fprintf(p_record, "LIST%c%c%c%cadtl", 4, 0, 0, 0);
893 fseek(p_record, 0, SEEK_SET);
895 /* WAVEfmt xxxx(fmt-size)dataxxxx[data]cue xxxx0000LISTxxxxadtl*/
896 size = p_record_length;
897 wsize = 4+8+sizeof(fmt)+8+size+8+4+8+4;
900 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));
903 fprintf(p_record, "WAVE");
906 fprintf(p_record, "fmt %c%c%c%c", (unsigned int)sizeof(fmt), 0, 0, 0);
907 switch(p_record_type)
912 fmt.sample_rate = 8000; /* samples/sec */
913 fmt.data_rate = 16000; /* full data rate */
914 fmt.bytes_sample = 2; /* all channels */
915 fmt.bits_sample = 16; /* one channel */
921 fmt.sample_rate = 8000; /* samples/sec */
922 fmt.data_rate = 32000; /* full data rate */
923 fmt.bytes_sample = 4; /* all channels */
924 fmt.bits_sample = 16; /* one channel */
930 fmt.sample_rate = 8000; /* samples/sec */
931 fmt.data_rate = 8000; /* full data rate */
932 fmt.bytes_sample = 1; /* all channels */
933 fmt.bits_sample = 8; /* one channel */
936 fwrite(&fmt, sizeof(fmt), 1, p_record);
939 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));
942 if (p_record_vbox == 1)
943 SPRINT(filename, "%s.wav", p_record_filename);
945 SPRINT(filename, "%s_%s-%s.wav", p_record_filename, callerid, number);
950 if (p_record_vbox == 1)
951 SPRINT(filename, "%s.isdn", p_record_filename);
953 SPRINT(filename, "%s_%s-%s.isdn", p_record_filename, callerid, number);
961 if (rename(p_record_filename, filename) < 0)
963 PERROR("Port(%d) cannot rename from '%s' to '%s'\n", p_serial, p_record_filename, filename);
967 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);
969 if (p_record_vbox == 2)
971 SPRINT(indexname, "%s/%s/vbox/index", EXTENSION_DATA, p_record_extension);
972 if ((fp = fopen(indexname,"a")))
976 /* remove path from file name */
978 while(strchr(p, '/'))
979 p = strchr(p, '/')+1;
980 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);
986 PERROR("Port(%d) cannot open index file '%s' to append.\n", p_serial, indexname);
989 /* send email with sample*/
990 if (p_record_vbox_email[0])
992 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);
1000 * Records all data from down and from up into one single stream.
1001 * Both streams may have gaps or jitter.
1002 * A Jitter buffer for both streams is used to compensate jitter.
1004 * If one stream (dir) received packets, they are stored to a
1005 * buffer to wait for the other stream (dir), so both streams can
1006 * be combined. If the buffer is full, it's content is written
1007 * without mixing stream. (assuming only one stram (dir) exists.)
1008 * A flag is used to indicate what stream is currently in buffer.
1010 * NOTE: First stereo sample (odd) is from down, second is from up.
1012 void Port::record(unsigned char *data, int length, int dir_fromup)
1014 unsigned char write_buffer[1024], *d;
1020 if (!p_record || !length)
1023 /* skip data from local caller (dtmf input) */
1024 if (p_record_skip && !dir_fromup)
1026 /* more to skip than we have */
1027 if (p_record_skip > length)
1029 p_record_skip -= length;
1033 data += p_record_skip;
1034 length -= p_record_skip;
1038 //printf("dir=%d len=%d\n", dir_fromup, length);
1040 free = ((p_record_buffer_readp - p_record_buffer_writep - 1) & RECORD_BUFFER_MASK);
1042 //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);
1044 /* the buffer stores the same data stream */
1045 if (dir_fromup == p_record_buffer_dir)
1049 //printf("same free=%d length=%d\n", free, length);
1050 /* first write what we can to the buffer */
1051 while(free && length)
1053 p_record_buffer[p_record_buffer_writep] = audio_law_to_s32[*data++];
1054 p_record_buffer_writep = (p_record_buffer_writep + 1) & RECORD_BUFFER_MASK;
1058 /* all written, so we return */
1061 /* still data left, buffer is full, so we need to write a chunk to file */
1062 switch(p_record_type)
1065 s = (signed short *)write_buffer;
1069 *s++ = p_record_buffer[p_record_buffer_readp];
1070 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1073 fwrite(write_buffer, 512, 1, p_record);
1074 p_record_length += 512;
1078 s = (signed short *)write_buffer;
1079 if (p_record_buffer_dir)
1084 *s++ = 0; /* nothing from down */
1085 *s++ = p_record_buffer[p_record_buffer_readp];
1086 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1094 *s++ = p_record_buffer[p_record_buffer_readp];
1095 *s++ = 0; /* nothing from up */
1096 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1100 fwrite(write_buffer, 1024, 1, p_record);
1101 p_record_length += 1024;
1109 *d++ = ((unsigned short)(p_record_buffer[p_record_buffer_readp]+0x8000)) >> 8;
1110 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1113 fwrite(write_buffer, 512, 1, p_record);
1114 p_record_length += 512;
1122 *d++ = audio_s16_to_law[p_record_buffer[p_record_buffer_readp] & 0xffff];
1123 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1126 fwrite(write_buffer, 256, 1, p_record);
1127 p_record_length += 256;
1130 /* because we still have data, we write again */
1134 /* the buffer stores the other stream */
1137 /* if buffer empty, change it */
1138 if (p_record_buffer_readp == p_record_buffer_writep)
1140 p_record_buffer_dir = dir_fromup;
1143 /* how much data can we mix ? */
1144 ii = (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK;
1150 //printf("same ii=%d length=%d\n", ii, length);
1151 //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);
1153 /* write data mixed with the buffer */
1154 switch(p_record_type)
1157 s = (signed short *)write_buffer;
1161 sample = p_record_buffer[p_record_buffer_readp]
1162 + audio_law_to_s32[*data++];
1163 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1164 if (sample < SHORT_MIN) sample = SHORT_MIN;
1165 if (sample > SHORT_MAX) sample = SHORT_MAX;
1169 fwrite(write_buffer, ii<<1, 1, p_record);
1170 p_record_length += (ii<<1);
1174 s = (signed short *)write_buffer;
1175 if (p_record_buffer_dir)
1180 *s++ = audio_law_to_s32[*data++];
1181 *s++ = p_record_buffer[p_record_buffer_readp];
1182 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1190 *s++ = p_record_buffer[p_record_buffer_readp];
1191 *s++ = audio_law_to_s32[*data++];
1192 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1196 fwrite(write_buffer, ii<<2, 1, p_record);
1197 p_record_length += (ii<<2);
1205 sample = p_record_buffer[p_record_buffer_readp]
1206 + audio_law_to_s32[*data++];
1207 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1208 if (sample < SHORT_MIN) sample = SHORT_MIN;
1209 if (sample > SHORT_MAX) sample = SHORT_MAX;
1210 *d++ = (sample+0x8000) >> 8;
1213 fwrite(write_buffer, ii, 1, p_record);
1214 p_record_length += ii;
1222 sample = p_record_buffer[p_record_buffer_readp]
1223 + audio_law_to_s32[*data++];
1224 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1225 if (sample < SHORT_MIN) sample = SHORT_MIN;
1226 if (sample > SHORT_MAX) sample = SHORT_MAX;
1227 *d++ = audio_s16_to_law[sample & 0xffff];
1230 fwrite(write_buffer, ii, 1, p_record);
1231 p_record_length += ii;
1237 goto different_again;
1238 /* no data (maybe buffer) */