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lcr/port.cpp

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/*****************************************************************************\
** **
** PBX4Linux **
** **
**---------------------------------------------------------------------------**
** Copyright: Andreas Eversberg **
** **
** port **
** **
\*****************************************************************************/
/* HOW TO audio?
Audio flow has two ways:
* from channel to the upper layer
-> sound from mISDN channel
-> announcement from vbox channel
* from the upper layer to the channel
-> sound from remote channel
Audio is required:
-> if local or remote channel is not mISDN
-> if call is recorded (vbox)
Functions:
* PmISDN::txfromup
-> audio from upper layer is buffered for later transmission to channel
* PmISDN::handler
-> buffered audio from upper layer or tones are transmitted via system clock
* mISDN_handler
-> rx-data from port to record() and upper layer
-> tx-data from port (dsp) to record()
* VboxPort::handler
-> streaming announcement to upper layer
-> recording announcement
* VboxPort::message_epoint
-> recording audio message from upper layer
*/
#include "main.h"
#define SHORT_MIN -32768
#define SHORT_MAX 32767
class Port *port_first = NULL;
unsigned int port_serial = 1; /* must be 1, because 0== no port */
/* free epointlist relation
*/
void Port::free_epointlist(struct epoint_list *epointlist)
{
struct epoint_list *temp, **tempp;
temp = p_epointlist;
tempp = &p_epointlist;
while(temp)
{
if (temp == epointlist)
break;
tempp = &temp->next;
temp = temp->next;
}
if (temp == 0)
{
PERROR("SOFTWARE ERROR: epointlist not in port's list.\n");
return;
}
/* detach */
*tempp=temp->next;
/* free */
PDEBUG(DEBUG_EPOINT, "PORT(%d) removed epoint from port\n", p_serial);
FREE(temp, sizeof(struct epoint_list));
ememuse--;
}
void Port::free_epointid(unsigned int epoint_id)
{
struct epoint_list *temp, **tempp;
temp = p_epointlist;
tempp = &p_epointlist;
while(temp)
{
if (temp->epoint_id == epoint_id)
break;
tempp = &temp->next;
temp = temp->next;
}
if (temp == 0)
{
PERROR("epoint_id not in port's list.\n");
return;
}
/* detach */
*tempp=temp->next;
/* free */
PDEBUG(DEBUG_EPOINT, "PORT(%d) removed epoint from port\n", p_serial);
FREE(temp, sizeof(struct epoint_list));
ememuse--;
}
/* create new epointlist relation
*/
struct epoint_list *Port::epointlist_new(unsigned int epoint_id)
{
struct epoint_list *epointlist, **epointlistpointer;
/* epointlist structure */
epointlist = (struct epoint_list *)MALLOC(sizeof(struct epoint_list));
if (!epointlist)
FATAL("No memory for epointlist\n");
ememuse++;
PDEBUG(DEBUG_EPOINT, "PORT(%d) allocating epoint_list.\n", p_serial);
/* add epoint_list to chain */
epointlist->next = NULL;
epointlistpointer = &p_epointlist;
while(*epointlistpointer)
epointlistpointer = &((*epointlistpointer)->next);
*epointlistpointer = epointlist;
/* link to epoint */
epointlist->epoint_id = epoint_id;
epointlist->active = 1;
return(epointlist);
}
/*
* port constructor
*/
Port::Port(int type, const char *portname, struct port_settings *settings)
{
class Port *temp, **tempp;
PDEBUG(DEBUG_PORT, "new port of type %d, name '%s'\n", type, portname);
/* initialize object */
if (settings)
memcpy(&p_settings, settings, sizeof(struct port_settings));
else
{
memset(&p_settings, 0, sizeof(p_settings));
SCPY(p_settings.tones_dir, options.tones_dir);
}
SCPY(p_name, portname);
SCPY(p_tone_dir, p_settings.tones_dir); // just to be sure
p_type = type;
p_serial = port_serial++;
p_tone_fh = -1;
p_tone_fetched = NULL;
p_tone_name[0] = '\0';
p_state = PORT_STATE_IDLE;
p_epointlist = NULL;
memset(&p_callerinfo, 0, sizeof(p_callerinfo));
memset(&p_dialinginfo, 0, sizeof(p_dialinginfo));
memset(&p_connectinfo, 0, sizeof(p_connectinfo));
memset(&p_redirinfo, 0, sizeof(p_redirinfo));
memset(&p_capainfo, 0, sizeof(p_capainfo));
p_echotest = 0;
/* call recording */
p_record = NULL;
p_record_type = 0;
p_record_length = 0;
p_record_skip = 0;
p_record_filename[0] = '\0';
p_record_buffer_readp = 0;
p_record_buffer_writep = 0;
p_record_buffer_dir = 0;
/* append port to chain */
next = NULL;
temp = port_first;
tempp = &port_first;
while(temp)
{
tempp = &temp->next;
temp = temp->next;
}
*tempp = this;
classuse++;
}
/*
* port destructor
*/
Port::~Port(void)
{
class Port *temp, **tempp;
struct lcr_msg *message;
if (p_record)
close_record(0, 0);
classuse--;
PDEBUG(DEBUG_PORT, "removing port of type %d, name '%s'\n", p_type, p_name);
/* disconnect port from endpoint */
while(p_epointlist)
{
/* send disconnect */
message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
message->param.disconnectinfo.cause = 16;
message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
message_put(message);
/* remove endpoint */
free_epointlist(p_epointlist);
}
/* remove port from chain */
temp=port_first;
tempp=&port_first;
while(temp)
{
if (temp == this)
break;
tempp = &temp->next;
temp = temp->next;
}
if (temp == NULL)
FATAL("PORT(%s) port not in port's list.\n", p_name);
/* detach */
*tempp=this->next;
/* close open tones file */
if (p_tone_fh >= 0)
{
close(p_tone_fh);
p_tone_fh = -1;
fhuse--;
}
p_tone_fetched = NULL;
}
PORT_STATE_NAMES
/* set new endpoint state
*/
void Port::new_state(int state)
{
PDEBUG(DEBUG_PORT, "PORT(%s) new state %s --> %s\n", p_name, state_name[p_state], state_name[state]);
p_state = state;
}
/*
* find the port with port_id
*/
class Port *find_port_id(unsigned int port_id)
{
class Port *port = port_first;
while(port)
{
//printf("comparing: '%s' with '%s'\n", name, port->name);
if (port->p_serial == port_id)
return(port);
port = port->next;
}
return(NULL);
}
/*
* set echotest
*/
void Port::set_echotest(int echotest)
{
p_echotest = echotest;
}
/*
* set the file in the tone directory with the given name
*/
void Port::set_tone(const char *dir, const char *name)
{
int fh;
char filename[128];
if (name == NULL)
name = "";
#if 0
/* if tones is jingle, store next tone */
if ((p_tone_fh >= 0 || p_tone_fetched)
&& (!strcmp(p_tone_name, "left") || !strcmp(p_tone_name, "joined")))
{
SCPY(p_tone_dir, dir);
SCPY(p_tone_name, name);
return;
}
#endif
/* no counter, no eof, normal speed */
p_tone_counter = 0;
p_tone_eof = 0;
p_tone_speed = 1;
p_tone_codec = CODEC_LAW;
if (p_tone_fh >= 0)
{
close(p_tone_fh);
p_tone_fh = -1;
fhuse--;
}
p_tone_fetched = NULL;
if (name[0])
{
if (name[0] == '/')
{
SPRINT(p_tone_name, "%s", name);
p_tone_dir[0] = '\0';
} else
{
SCPY(p_tone_dir, dir);
SCPY(p_tone_name, name);
}
} else
{
p_tone_name[0]= '\0';
p_tone_dir[0]= '\0';
return;
}
if (!!strncmp(name,"cause_",6))
return;
/* now we check if the cause exists, otherwhise we use error tone. */
if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, 0, 0)))
{
p_tone_fetched = NULL;
return;
}
SPRINT(filename, "%s_loop", p_tone_name);
if ((p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, 0, 0)))
{
p_tone_fetched = NULL;
return;
}
SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
{
close(fh);
return;
}
SPRINT(filename, "%s/%s/%s_loop", INSTALL_DATA, p_tone_dir, p_tone_name);
if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
{
close(fh);
return;
}
if (!strcmp(name,"cause_00") || !strcmp(name,"cause_10"))
{
PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using release tone\n", p_name, name+6);
SPRINT(p_tone_name,"release");
} else
if (!strcmp(name,"cause_11"))
{
PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using busy tone\n", p_name, name+6);
SPRINT(p_tone_name,"busy");
} else
{
PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using error tone\n", p_name, name+6);
SPRINT(p_tone_name,"error");
}
}
/*
* set the file in the tone directory for vbox playback
* also set the play_eof-flag
*/
void Port::set_vbox_tone(const char *dir, const char *name)
{
char filename[256];
p_tone_speed = 1;
p_tone_counter = 0;
p_tone_codec = CODEC_LAW;
p_tone_eof = 1;
if (p_tone_fh >= 0)
{
close(p_tone_fh);
p_tone_fh = -1;
fhuse--;
}
p_tone_fetched = NULL;
SPRINT(p_tone_dir, dir);
SPRINT(p_tone_name, name);
/* now we check if the cause exists, otherwhise we use error tone. */
if (p_tone_dir[0])
{
if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, &p_tone_size, &p_tone_left)))
{
PDEBUG(DEBUG_PORT, "PORT(%s) opening fetched tone: %s\n", p_name, p_tone_name);
return;
}
SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
{
fhuse++;
PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
return;
}
} else
{
SPRINT(filename, "%s", p_tone_name);
if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
{
fhuse++;
PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
return;
}
}
}
/*
* set the file in the given directory for vbox playback
* also set the eof-flag
* also set the counter-flag
*/
void Port::set_vbox_play(const char *name, int offset)
{
signed int size;
struct lcr_msg *message;
/* use ser_box_tone() */
set_vbox_tone("", name);
if (p_tone_fh < 0)
return;
/* enable counter */
p_tone_counter = 1;
/* seek */
if (p_tone_name[0])
{
/* send message with counter value */
if (p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
{
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
message->param.counter.current = offset;
message->param.counter.max = size;
message_put(message);
}
}
}
/*
* set the playback speed (for recording playback with different speeds)
*/
void Port::set_vbox_speed(int speed)
{
/* enable vbox play mode */
p_tone_speed = speed;
}
/*
* read from the given file as specified in port_set_tone and return sample data
* if the tone ends, the result may be less samples than requested
*/
int Port::read_audio(unsigned char *buffer, int length)
{
int l,len;
int nodata=0; /* to detect 0-length files and avoid endless reopen */
char filename[128];
int tone_left_before; /* temp variable to determine the change in p_tone_left */
/* nothing */
if (length == 0)
return(0);
len = length;
/* if there is no tone set, use silence */
if (!p_tone_name[0])
return(0);
/* if the file pointer is not open, we open it */
if (p_tone_fh<0 && p_tone_fetched==NULL)
{
if (p_tone_dir[0])
{
SPRINT(filename, "%s", p_tone_name);
/* if file does not exist */
if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
{
SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
/* if file does not exist */
if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
{
PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
goto try_loop;
}
fhuse++;
}
} else
{
SPRINT(filename, "%s", p_tone_name);
/* if file does not exist */
if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
{
PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
goto try_loop;
}
fhuse++;
}
PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
}
read_more:
/* file descriptor is open read data */
tone_left_before = p_tone_left;
if (p_tone_fh >= 0)
{
l = read_tone(p_tone_fh, buffer, p_tone_codec, len, p_tone_size, &p_tone_left, p_tone_speed);
if (l<0 || l>len) /* paranoia */
l=0;
buffer += l;
len -= l;
}
if (p_tone_fetched)
{
l = read_tone_fetched(&p_tone_fetched, buffer, len, p_tone_size, &p_tone_left, p_tone_speed);
if (l<0 || l>len) /* paranoia */
l=0;
buffer += l;
len -= l;
}
/* if counter is enabled, we check if we have a change */
if (p_tone_counter && p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
{
/* if we jumed to the next second */
if (((p_tone_size-p_tone_left)/8000) != (p_tone_size-tone_left_before)/8000)
{
//printf("\nsize=%d left=%d\n\n",p_tone_size,p_tone_left);
struct lcr_msg *message;
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
message->param.counter.current = (p_tone_size-p_tone_left)/8000;
message->param.counter.max = -1;
message_put(message);
}
}
if (len==0)
return(length-len);
if (p_tone_fh >= 0)
{
close(p_tone_fh);
p_tone_fh = -1;
fhuse--;
}
p_tone_fetched = NULL;
if (l)
nodata=0;
/* if the file has 0-length */
if (nodata>1)
{
PDEBUG(DEBUG_PORT, "PORT(%s) 0-length loop: %s\n", p_name, filename);
p_tone_name[0]=0;
p_tone_dir[0]=0;
return(length-len);
}
/* if eof is reached, or if the normal file cannot be opened, continue with the loop file if possible */
try_loop:
if (p_tone_eof && ACTIVE_EPOINT(p_epointlist))
{
struct lcr_msg *message;
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_EOF);
message_put(message);
}
if (p_tone_dir[0])
{
/* if file does not exist */
SPRINT(filename, "%s_loop", p_tone_name);
if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
{
SPRINT(filename, "%s/%s/%s_loop", INSTALL_DATA, p_tone_dir, p_tone_name);
/* if file does not exist */
if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
{
PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
p_tone_dir[0] = '\0';
p_tone_name[0] = '\0';
return(length-len);
}
fhuse++;
}
} else
{
SPRINT(filename, "%s_loop", p_tone_name);
/* if file does not exist */
if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
{
PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
p_tone_dir[0] = '\0';
p_tone_name[0] = '\0';
return(length-len);
}
fhuse++;
}
nodata++;
PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
/* now we have opened the loop */
goto read_more;
}
/* port handler:
* process transmission clock */
int Port::handler(void)
{
return(0);
}
/* endpoint sends messages to the port
* this is called by the message_epoint inherited by child classes
* therefor a return=1 means: stop, no more processing
*/
//extern struct lcr_msg *dddebug;
int Port::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
{
/* check if we got audio data from one remote port */
switch(message_id)
{
case MESSAGE_TONE: /* play tone */
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);
set_tone(param->tone.dir,param->tone.name);
return(1);
case MESSAGE_VBOX_TONE: /* play tone of answering machine */
PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine tone '%s' '%s'\n", p_name, param->tone.dir, param->tone.name);
set_vbox_tone(param->tone.dir, param->tone.name);
return(1);
case MESSAGE_VBOX_PLAY: /* play recording of answering machine */
PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine file to play '%s' (offset %d seconds)\n", p_name, param->play.file, param->play.offset);
set_vbox_play(param->play.file, param->play.offset);
return(1);
case MESSAGE_VBOX_PLAY_SPEED: /* set speed of playback (recording of answering machine) */
PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine playback speed %d (times)\n", p_name, param->speed);
set_vbox_speed(param->speed);
return(1);
}
return(0);
}
/* wave header structure */
struct fmt {
unsigned short stereo; /* 1 = mono, 2 = stereo */
unsigned short channels; /* number of channels */
unsigned int sample_rate; /* sample rate */
unsigned int data_rate; /* data rate */
unsigned short bytes_sample; /* bytes per sample (all channels) */
unsigned short bits_sample; /* bits per sample (one channel) */
};
/*
* open record file (actually a wave file with empty header which will be
* written before close, because we do not know the size yet)
* type=1 record annoucement, type=0 record audio stream, type=2 record vbox
*/
int Port::open_record(int type, int vbox, int skip, char *extension, int anon_ignore, const char *vbox_email, int vbox_email_file)
{
/* RIFFxxxxWAVEfmt xxxx(fmt-size)dataxxxx... */
char dummyheader[8+4+8+sizeof(fmt)+8];
char filename[256];
if (!extension)
{
PERROR("Port(%d) not an extension\n", p_serial);
return(0);
}
SCPY(p_record_extension, extension);
p_record_anon_ignore = anon_ignore;
SCPY(p_record_vbox_email, vbox_email);
p_record_vbox_email_file = vbox_email_file;
if (p_record)
{
PERROR("Port(%d) already recording\n", p_serial);
return(0);
}
if (vbox != 0)
SPRINT(filename, "%s/%s/%s/vbox", INSTALL_DATA, options.extensions_dir, p_record_extension);
else
SPRINT(filename, "%s/%s/%s/recordings", INSTALL_DATA, options.extensions_dir, p_record_extension);
if (mkdir(filename, 0755) < 0)
{
if (errno != EEXIST)
{
PERROR("Port(%d) cannot create directory '%s'\n", p_serial, filename);
return(0);
}
}
if (vbox == 1)
UPRINT(strchr(filename,'\0'), "/announcement");
else
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);
if (vbox == 2)
{
p_record_vbox_year = now_tm->tm_year;
p_record_vbox_mon = now_tm->tm_mon;
p_record_vbox_mday = now_tm->tm_mday;
p_record_vbox_hour = now_tm->tm_hour;
p_record_vbox_min = now_tm->tm_min;
}
/* check, if file exists (especially when an extension calls the same extension) */
if (vbox != 1)
if ((p_record = fopen(filename, "r")))
{
fclose(p_record);
SCAT(filename, "_2nd");
}
p_record = fopen(filename, "w");
if (!p_record)
{
PERROR("Port(%d) cannot record because file cannot be opened '%s'\n", p_serial, filename);
return(0);
}
fduse++;
p_record_type = type;
p_record_vbox = vbox;
p_record_skip = skip;
p_record_length = 0;
switch(p_record_type)
{
case CODEC_MONO:
case CODEC_STEREO:
case CODEC_8BIT:
fwrite(dummyheader, sizeof(dummyheader), 1, p_record);
break;
case CODEC_LAW:
break;
}
UCPY(p_record_filename, filename);
PDEBUG(DEBUG_PORT, "Port(%d) recording started with file name '%s'\n", p_serial, filename);
return(1);
}
/*
* close the recoding file, put header in front and rename
*/
void Port::close_record(int beep, int mute)
{
static signed short beep_mono[256];
unsigned int size, wsize;
struct fmt fmt;
char filename[512], indexname[512];
FILE *fp;
int i, ii;
char number[256], callerid[256];
char *p;
struct caller_info callerinfo;
const char *valid_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_.-!$%&/()=+*;~";
if (!p_record)
return;
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);
memcpy(&callerinfo, &p_callerinfo, sizeof(struct caller_info));
// apply_callerid_restriction(p_record_anon_ignore, callerinfo.id, &callerinfo.ntype, &callerinfo.present, &callerinfo.screen, callerinfo.extension, callerinfo.name);
SCPY(number, p_dialinginfo.id);
SCPY(callerid, numberrize_callerinfo(callerinfo.id, callerinfo.ntype, options.national, options.international));
if (callerid[0] == '\0')
{
if (callerinfo.present == INFO_PRESENT_RESTRICTED)
UCPY(callerid,"anonymous");
else
UCPY(callerid,"unknown");
}
/* change verboten digits */
p = callerid;
while((p=strchr(p,'*')))
*(p++) = 'x';
p = callerid;
while((p=strchr(p,'/')))
*(p++) = 'x';
p = number;
while((p=strchr(p,'*')))
*(p++) = 'x';
p = number;
while((p=strchr(p,'/')))
*(p++) = 'x';
i = 0;
ii = strlen(callerid);
while(i < ii)
{
if (!strchr(valid_chars, callerid[i]))
callerid[i] = '_';
i++;
}
i = 0;
ii = strlen(number);
while(i < ii)
{
if (!strchr(valid_chars, number[i]))
number[i] = '_';
i++;
}
/* mute */
if (mute && p_record_type==CODEC_MONO)
{
i = p_record_length;
if (i > mute)
i = mute;
fseek(p_record, -(i<<1), SEEK_END);
p_record_length -= (i<<1);
}
/* add beep to the end of recording */
if (beep && p_record_type==CODEC_MONO)
{
i = 0;
while(i < 256)
{
beep_mono[i] = (signed short)(sin((double)i / 5.688888888889 * 2.0 * 3.1415927) * 2000.0);
i++;
}
i = 0;
while(i < beep)
{
fwrite(beep_mono, sizeof(beep_mono), 1, p_record);
i += sizeof(beep_mono);
p_record_length += sizeof(beep_mono);
}
}
/* complete header */
switch(p_record_type)
{
case CODEC_MONO:
case CODEC_STEREO:
case CODEC_8BIT:
/* cue */
fprintf(p_record, "cue %c%c%c%c%c%c%c%c", 4, 0, 0, 0, 0,0,0,0);
/* LIST */
fprintf(p_record, "LIST%c%c%c%cadtl", 4, 0, 0, 0);
/* go to header */
fseek(p_record, 0, SEEK_SET);
/* WAVEfmt xxxx(fmt-size)dataxxxx[data]cue xxxx0000LISTxxxxadtl*/
size = p_record_length;
wsize = 4+8+sizeof(fmt)+8+size+8+4+8+4;
/* RIFF */
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));
/* WAVE */
fprintf(p_record, "WAVE");
/* fmt */
fprintf(p_record, "fmt %c%c%c%c", (unsigned int)sizeof(fmt), 0, 0, 0);
switch(p_record_type)
{
case CODEC_MONO:
fmt.stereo = 1;
fmt.channels = 1;
fmt.sample_rate = 8000; /* samples/sec */
fmt.data_rate = 16000; /* full data rate */
fmt.bytes_sample = 2; /* all channels */
fmt.bits_sample = 16; /* one channel */
break;
case CODEC_STEREO:
fmt.stereo = 1;
fmt.channels = 2;
fmt.sample_rate = 8000; /* samples/sec */
fmt.data_rate = 32000; /* full data rate */
fmt.bytes_sample = 4; /* all channels */
fmt.bits_sample = 16; /* one channel */
break;
case CODEC_8BIT:
fmt.stereo = 1;
fmt.channels = 1;
fmt.sample_rate = 8000; /* samples/sec */
fmt.data_rate = 8000; /* full data rate */
fmt.bytes_sample = 1; /* all channels */
fmt.bits_sample = 8; /* one channel */
break;
}
fwrite(&fmt, sizeof(fmt), 1, p_record);
/* data */
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));
/* rename file */
if (p_record_vbox == 1)
SPRINT(filename, "%s.wav", p_record_filename);
else
SPRINT(filename, "%s_%s-%s.wav", p_record_filename, callerid, number);
break;
case CODEC_LAW:
/* rename file */
if (p_record_vbox == 1)
SPRINT(filename, "%s.isdn", p_record_filename);
else
SPRINT(filename, "%s_%s-%s.isdn", p_record_filename, callerid, number);
break;
}
fclose(p_record);
fduse--;
p_record = NULL;
if (rename(p_record_filename, filename) < 0)
{
PERROR("Port(%d) cannot rename from '%s' to '%s'\n", p_serial, p_record_filename, filename);
return;
}
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);
if (p_record_vbox == 2)
{
SPRINT(indexname, "%s/%s/%s/vbox/index", INSTALL_DATA, options.extensions_dir, p_record_extension);
if ((fp = fopen(indexname,"a")))
{
fduse++;
/* remove path from file name */
p = filename;
while(strchr(p, '/'))
p = strchr(p, '/')+1;
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);
fclose(fp);
fduse--;
} else
{
PERROR("Port(%d) cannot open index file '%s' to append.\n", p_serial, indexname);
}
/* send email with sample*/
if (p_record_vbox_email[0])
{
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);
}
}
}
/*
* recording function
* Records all data from down and from up into one single stream.
* Both streams may have gaps or jitter.
* A Jitter buffer for both streams is used to compensate jitter.
*
* If one stream (dir) received packets, they are stored to a
* buffer to wait for the other stream (dir), so both streams can
* be combined. If the buffer is full, it's content is written
* without mixing stream. (assuming only one stram (dir) exists.)
* A flag is used to indicate what stream is currently in buffer.
*
* NOTE: First stereo sample (odd) is from down, second is from up.
*/
void Port::record(unsigned char *data, int length, int dir_fromup)
{
unsigned char write_buffer[1024], *d;
signed short *s;
int free, i, ii;
signed int sample;
/* no recording */
if (!p_record || !length)
return;
/* skip data from local caller (dtmf input) */
if (p_record_skip && !dir_fromup)
{
/* more to skip than we have */
if (p_record_skip > length)
{
p_record_skip -= length;
return;
}
/* less to skip */
data += p_record_skip;
length -= p_record_skip;
p_record_skip = 0;
}
//printf("dir=%d len=%d\n", dir_fromup, length);
free = ((p_record_buffer_readp - p_record_buffer_writep - 1) & RECORD_BUFFER_MASK);
//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);
/* the buffer stores the same data stream */
if (dir_fromup == p_record_buffer_dir)
{
same_again:
//printf("same free=%d length=%d\n", free, length);
/* first write what we can to the buffer */
while(free && length)
{
p_record_buffer[p_record_buffer_writep] = audio_law_to_s32[*data++];
p_record_buffer_writep = (p_record_buffer_writep + 1) & RECORD_BUFFER_MASK;
free--;
length--;
}
/* all written, so we return */
if (!length)
return;
/* still data left, buffer is full, so we need to write a chunk to file */
switch(p_record_type)
{
case CODEC_MONO:
s = (signed short *)write_buffer;
i = 0;
while(i < 256)
{
*s++ = p_record_buffer[p_record_buffer_readp];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
fwrite(write_buffer, 512, 1, p_record);
p_record_length += 512;
break;
case CODEC_STEREO:
s = (signed short *)write_buffer;
if (p_record_buffer_dir)
{
i = 0;
while(i < 256)
{
*s++ = 0; /* nothing from down */
*s++ = p_record_buffer[p_record_buffer_readp];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
} else
{
i = 0;
while(i < 256)
{
*s++ = p_record_buffer[p_record_buffer_readp];
*s++ = 0; /* nothing from up */
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
}
fwrite(write_buffer, 1024, 1, p_record);
p_record_length += 1024;
break;
case CODEC_8BIT:
d = write_buffer;
i = 0;
while(i < 256)
{
*d++ = ((unsigned short)(p_record_buffer[p_record_buffer_readp]+0x8000)) >> 8;
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
fwrite(write_buffer, 512, 1, p_record);
p_record_length += 512;
break;
case CODEC_LAW:
d = write_buffer;
i = 0;
while(i < 256)
{
*d++ = audio_s16_to_law[p_record_buffer[p_record_buffer_readp] & 0xffff];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
fwrite(write_buffer, 256, 1, p_record);
p_record_length += 256;
break;
}
/* because we still have data, we write again */
free += 256;
goto same_again;
}
/* the buffer stores the other stream */
different_again:
/* if buffer empty, change it */
if (p_record_buffer_readp == p_record_buffer_writep)
{
p_record_buffer_dir = dir_fromup;
goto same_again;
}
/* how much data can we mix ? */
ii = (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK;
if (length < ii)
ii = length;
if (ii > 256)
ii = 256;
//printf("same ii=%d length=%d\n", ii, length);
//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);
/* write data mixed with the buffer */
switch(p_record_type)
{
case CODEC_MONO:
s = (signed short *)write_buffer;
i = 0;
while(i < ii)
{
sample = p_record_buffer[p_record_buffer_readp]
+ audio_law_to_s32[*data++];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
if (sample < SHORT_MIN) sample = SHORT_MIN;
if (sample > SHORT_MAX) sample = SHORT_MAX;
*s++ = sample;
i++;
}
fwrite(write_buffer, ii<<1, 1, p_record);
p_record_length += (ii<<1);
break;
case CODEC_STEREO:
s = (signed short *)write_buffer;
if (p_record_buffer_dir)
{
i = 0;
while(i < ii)
{
*s++ = audio_law_to_s32[*data++];
*s++ = p_record_buffer[p_record_buffer_readp];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
} else
{
i = 0;
while(i < ii)
{
*s++ = p_record_buffer[p_record_buffer_readp];
*s++ = audio_law_to_s32[*data++];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
}
fwrite(write_buffer, ii<<2, 1, p_record);
p_record_length += (ii<<2);
break;
case CODEC_8BIT:
d = write_buffer;
i = 0;
while(i < ii)
{
sample = p_record_buffer[p_record_buffer_readp]
+ audio_law_to_s32[*data++];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
if (sample < SHORT_MIN) sample = SHORT_MIN;
if (sample > SHORT_MAX) sample = SHORT_MAX;
*d++ = (sample+0x8000) >> 8;
i++;
}
fwrite(write_buffer, ii, 1, p_record);
p_record_length += ii;
break;
case CODEC_LAW:
d = write_buffer;
i = 0;
while(i < ii)
{
sample = p_record_buffer[p_record_buffer_readp]
+ audio_law_to_s32[*data++];
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
if (sample < SHORT_MIN) sample = SHORT_MIN;
if (sample > SHORT_MAX) sample = SHORT_MAX;
*d++ = audio_s16_to_law[sample & 0xffff];
i++;
}
fwrite(write_buffer, ii, 1, p_record);
p_record_length += ii;
break;
}
length -= ii;
/* still data */
if (length)
goto different_again;
/* no data (maybe buffer) */
return;
}
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