#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <tgmath.h>
#include <math.h>
#include "floating_fudge.h"
#include <assert.h>
#include <fcntl.h>
#include <time.h>
#include <tiffio.h>
#include "spandsp/telephony.h"
#include "spandsp/logging.h"
#include "spandsp/queue.h"
#include "spandsp/dc_restore.h"
#include "spandsp/vector_int.h"
#include "spandsp/power_meter.h"
#include "spandsp/complex.h"
#include "spandsp/tone_detect.h"
#include "spandsp/tone_generate.h"
#include "spandsp/async.h"
#include "spandsp/hdlc.h"
#include "spandsp/silence_gen.h"
#include "spandsp/super_tone_rx.h"
#include "spandsp/fsk.h"
#include "spandsp/modem_connect_tones.h"
#include "spandsp/v8.h"
#include "spandsp/v29tx.h"
#include "spandsp/v29rx.h"
#include "spandsp/v27ter_tx.h"
#include "spandsp/v27ter_rx.h"
#include "spandsp/v17tx.h"
#include "spandsp/v17rx.h"
#include "spandsp/t4_rx.h"
#include "spandsp/t4_tx.h"
#include "spandsp/t4_t6_decode.h"
#include "spandsp/t4_t6_encode.h"
#include "spandsp/t30_fcf.h"
#include "spandsp/t35.h"
#include "spandsp/t30.h"
#include "spandsp/t30_api.h"
#include "spandsp/t30_logging.h"
#include "spandsp/fax_modems.h"
#include "spandsp/fax.h"
#include "spandsp/private/logging.h"
#include "spandsp/private/silence_gen.h"
#include "spandsp/private/fsk.h"
#include "spandsp/private/modem_connect_tones.h"
#include "spandsp/private/v8.h"
#include "spandsp/private/v17tx.h"
#include "spandsp/private/v17rx.h"
#include "spandsp/private/v27ter_tx.h"
#include "spandsp/private/v27ter_rx.h"
#include "spandsp/private/v29tx.h"
#include "spandsp/private/v29rx.h"
#include "spandsp/private/hdlc.h"
#include "spandsp/private/fax_modems.h"
#include "spandsp/private/t4_t6_decode.h"
#include "spandsp/private/t4_t6_encode.h"
#include "spandsp/private/t4_rx.h"
#include "spandsp/private/t4_tx.h"
#include "spandsp/private/t30.h"
#include "spandsp/private/fax.h"
Defines | |
#define | HDLC_FRAMING_OK_THRESHOLD 8 |
Functions | |
SPAN_DECLARE_NONSTD (int) | |
Get the next bit of a transmitted serial bit stream. | |
void | fax_set_transmit_on_idle (fax_state_t *s, int transmit_on_idle) |
Select whether silent audio will be sent when FAX transmit is idle. | |
void | fax_set_tep_mode (fax_state_t *s, int use_tep) |
Select whether TEP will be sent for the image modems. | |
t30_state_t * | fax_get_t30_state (fax_state_t *s) |
Get a pointer to the T.30 engine associated with a FAX context. | |
logging_state_t * | fax_get_logging_state (fax_state_t *s) |
Get a pointer to the logging context associated with a FAX context. | |
int | fax_restart (fax_state_t *s, int calling_party) |
Restart a FAX context. | |
fax_state_t * | fax_init (fax_state_t *s, int calling_party) |
Initialise a FAX context. | |
int | fax_release (fax_state_t *s) |
Release a FAX context. | |
int | fax_free (fax_state_t *s) |
Free a FAX context. |
int fax_free | ( | fax_state_t * | s | ) |
Free a FAX context.
Free a FAX context.
s | The FAX context. |
References t30_release().
logging_state_t* fax_get_logging_state | ( | fax_state_t * | s | ) |
Get a pointer to the logging context associated with a FAX context.
Get a pointer to the logging context associated with a FAX context.
s | The FAX context. |
t30_state_t* fax_get_t30_state | ( | fax_state_t * | s | ) |
Get a pointer to the T.30 engine associated with a FAX context.
Get a pointer to the T.30 engine associated with a FAX context.
s | The FAX context. |
fax_state_t* fax_init | ( | fax_state_t * | s, | |
int | calling_party | |||
) |
Initialise a FAX context.
Initialise a FAX context.
s | The FAX context. | |
calling_party | TRUE if the context is for a calling party. FALSE if the context is for an answering party. |
References fax_restart(), MODEM_CONNECT_TONES_ANSAM_PR, t30_init(), t30_set_supported_modems(), T30_SUPPORT_V17, T30_SUPPORT_V27TER, T30_SUPPORT_V29, T30_SUPPORT_V34HDX, and v8_init().
int fax_release | ( | fax_state_t * | s | ) |
Release a FAX context.
Release a FAX context.
s | The FAX context. |
References t30_release().
int fax_restart | ( | fax_state_t * | s, | |
int | calling_party | |||
) |
Restart a FAX context.
Restart a FAX context.
s | The FAX context. | |
calling_party | TRUE if the context is for a calling party. FALSE if the context is for an answering party. |
References MODEM_CONNECT_TONES_ANSAM_PR, t30_restart(), T30_SUPPORT_V17, T30_SUPPORT_V27TER, T30_SUPPORT_V29, and T30_SUPPORT_V34HDX.
Referenced by fax_init().
void fax_set_tep_mode | ( | fax_state_t * | s, | |
int | use_tep | |||
) |
Select whether TEP will be sent for the image modems.
Select whether talker echo protection tone will be sent for the image modems.
s | The FAX context. | |
use_tep | TRUE if TEP should be sent. |
void fax_set_transmit_on_idle | ( | fax_state_t * | s, | |
int | transmit_on_idle | |||
) |
Select whether silent audio will be sent when FAX transmit is idle.
Select whether silent audio will be sent when FAX transmit is idle.
s | The FAX context. | |
transmit_on_idle | TRUE if silent audio should be output when the FAX transmitter is idle. FALSE to transmit zero length audio when the FAX transmitter is idle. The default behaviour is FALSE. |
SPAN_DECLARE_NONSTD | ( | int | ) |
Get the next bit of a transmitted serial bit stream.
Get the next bit of data from a T.38 rate adapting non-ECM buffer context.
Get a bit of received non-ECM image data.
Get the next bit of a transmitted serial bit stream.
user_data | An opaque point which must point to a transmitter context. |
Get the next bit of a transmitted serial bit stream.
Process a block of received V.8 audio samples.
Fake processing of a missing block of received V.29 modem audio samples.
Fake processing of a missing block of received V.27ter modem audio samples.
Generate a block of V.22bis modem audio samples.
Fake processing of a missing block of received V.22bis modem audio samples.
Process a block of received V.18 audio samples.
Fake processing of a missing block of received V.17 modem audio samples.
Generate a block of FAX audio samples.
Apply fake received audio processing.
Generate a block of T.31 modem audio samples.
Fake processing of a missing block of received T.31 modem audio samples.
Dummy receive fillin callback.
Dummy receive callback.
Process a block of samples through an instance of the modem connect tones detector.
Get the next sequence of bytes for transmission.
Get the next byte for transmission.
Fake processing of a missing block of received FSK modem audio samples.
Process a block of received FSK modem audio samples.
Apply T.30 transmit processing to generate a block of audio samples.
Apply fake T.30 receive processing when a block of audio samples is missing (e.g due to packet loss).
s | The FAX context. | |
len | The number of samples to fake. |
Apply T.30 transmit processing to generate a block of audio samples.
s | The FAX context. | |
amp | The audio sample buffer. | |
max_len | The number of samples to be generated. |
Process a block of received FSK modem audio samples.
s | The modem context. | |
amp | The audio sample buffer. | |
len | The number of samples in the buffer. |
Fake processing of a missing block of received FSK modem audio samples (e.g due to packet loss).
s | The modem context. | |
len | The number of samples to fake. |
s | A pointer to an HDLC transmitter context. |
s | A pointer to an HDLC transmitter context. | |
buf | The buffer for the data. | |
max_len | The number of bytes to get. |
s | The context. | |
amp | An array of signal samples. | |
len | The number of samples in the array. |
A dummy routine to use as a receive callback, when we aren't really trying to process what is received. It just absorbs and ignores the data.
user_data | The context. | |
amp | The signal.buffer | |
len | The length of the signal buffer |
A dummy routine to use as a receive fillin callback, when we aren't really trying to process what is received. It just absorbs and ignores the request.
user_data | The context. | |
len | The length of the signal buffer |
Fake processing of a missing block of received T.31 modem audio samples (e.g due to packet loss).
s | The T.31 modem context. | |
len | The number of samples to fake. |
Generate a block of T.31 modem audio samples.
s | The T.31 modem context. | |
amp | The audio sample buffer. | |
max_len | The number of samples to be generated. |
Apply fake processing when a block of audio samples is missing (e.g due to packet loss).
s | The T.38 context. | |
len | The number of samples to fake. |
Generate a block of FAX audio samples.
s | The T.38 context. | |
amp | The audio sample buffer. | |
max_len | The number of samples to be generated. |
Fake processing of a missing block of received V.17 modem audio samples. (e.g due to packet loss).
s | The modem context. | |
len | The number of samples to fake. |
Process a block of received V.18 audio samples.
s | The V.18 context. | |
amp | The audio sample buffer. | |
len | The number of samples in the buffer. |
Fake processing of a missing block of received V.22bis modem audio samples. (e.g due to packet loss).
s | The modem context. | |
len | The number of samples to fake. |
Generate a block of V.22bis modem audio samples.
s | The modem context. | |
amp | The audio sample buffer. | |
len | The number of samples to be generated. |
Fake processing of a missing block of received V.27ter modem audio samples. (e.g due to packet loss).
s | The modem context. | |
len | The number of samples to fake. |
Fake processing of a missing block of received V.29 modem audio samples. (e.g due to packet loss).
s | The modem context. | |
len | The number of samples to fake. |
Process a block of received V.8 audio samples.
s | The V.8 context. | |
amp | The audio sample buffer. | |
len | The number of samples in the buffer. |
References t30_front_end_status().