spandsp 3.0.0
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#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "spandsp/stdbool.h"
#include "floating_fudge.h"
#include <assert.h>
#include <fcntl.h>
#include <time.h>
#include <tiffio.h>
#include "spandsp/telephony.h"
#include "spandsp/alloc.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/modem_echo.h"
#include "spandsp/async.h"
#include "spandsp/hdlc.h"
#include "spandsp/ssl_fax.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/godard.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/timezone.h"
#include "spandsp/t4_rx.h"
#include "spandsp/t4_tx.h"
#include "spandsp/image_translate.h"
#include "spandsp/t81_t82_arith_coding.h"
#include "spandsp/t85.h"
#include "spandsp/t42.h"
#include "spandsp/t43.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/ssl_fax.h"
#include "spandsp/private/silence_gen.h"
#include "spandsp/private/power_meter.h"
#include "spandsp/private/modem_echo.h"
#include "spandsp/private/fsk.h"
#include "spandsp/private/modem_connect_tones.h"
#include "spandsp/private/v8.h"
#include "spandsp/private/godard.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/timezone.h"
#include "spandsp/private/t81_t82_arith_coding.h"
#include "spandsp/private/t85.h"
#include "spandsp/private/t42.h"
#include "spandsp/private/t43.h"
#include "spandsp/private/t4_t6_decode.h"
#include "spandsp/private/t4_t6_encode.h"
#include "spandsp/private/image_translate.h"
#include "spandsp/private/t4_rx.h"
#include "spandsp/private/t4_tx.h"
#include "spandsp/private/t30.h"
#include "spandsp/private/fax.h"
Macros | |
#define | HDLC_FRAMING_OK_THRESHOLD 8 |
Functions | |
int | fax_rx (fax_state_t *s, int16_t *amp, int len) |
Apply T.30 receive processing to a block of audio samples. | |
int | fax_rx_fillin (fax_state_t *s, int len) |
Apply fake T.30 receive processing. | |
int | fax_tx (fax_state_t *s, int16_t *amp, int max_len) |
Apply T.30 transmit processing to generate a block of audio samples. | |
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, bool calling_party) |
Restart a FAX context. | |
fax_state_t * | fax_init (fax_state_t *s, bool 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 fax_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. |
References fax_state_s::logging.
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. |
References fax_state_s::t30.
fax_state_t * fax_init | ( | fax_state_t * | s, |
bool | 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(), fax_state_s::logging, MODEM_CONNECT_TONES_ANSAM_PR, fax_state_s::modems, t30_state_s::supported_modems, fax_state_s::t30, t30_hdlc_accept(), t30_init(), t30_non_ecm_get_bit(), t30_non_ecm_put_bit(), t30_set_supported_modems(), T30_SUPPORT_V17, T30_SUPPORT_V27TER, T30_SUPPORT_V29, T30_SUPPORT_V34HDX, fax_state_s::v8, and v8_init().
int fax_release | ( | fax_state_t * | s | ) |
Release a FAX context.
Release a FAX context.
s | The FAX context. |
References fax_state_s::t30, t30_release(), fax_state_s::v8, and v8_release().
Referenced by fax_free().
int fax_restart | ( | fax_state_t * | s, |
bool | 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 fax_modems_state_s::audio_rx_log, fax_modems_state_s::audio_tx_log, MODEM_CONNECT_TONES_ANSAM_PR, fax_state_s::modems, t30_state_s::supported_modems, fax_state_s::t30, t30_restart(), T30_SUPPORT_V17, T30_SUPPORT_V27TER, T30_SUPPORT_V29, T30_SUPPORT_V34HDX, and fax_state_s::v8.
Referenced by fax_init().
int fax_rx | ( | fax_state_t * | s, |
int16_t * | amp, | ||
int | len ) |
Apply T.30 receive processing to a block of audio samples.
Apply T.30 receive processing to a block of audio samples.
s | The FAX context. |
amp | The audio sample buffer. |
len | The number of samples in the buffer. |
References fax_modems_state_s::audio_rx_log, fax_state_s::modems, fax_modems_state_s::rx_handler, fax_state_s::t30, and t30_timer_update().
int fax_rx_fillin | ( | fax_state_t * | s, |
int | len ) |
Apply fake T.30 receive processing.
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. |
References fax_modems_state_s::audio_rx_log, fax_state_s::modems, fax_modems_state_s::rx_fillin_handler, fax_state_s::t30, and t30_timer_update().
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. |
References fax_state_s::modems.
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. |
References fax_state_s::modems, and fax_modems_state_s::transmit_on_idle.
int fax_tx | ( | fax_state_t * | s, |
int16_t * | amp, | ||
int | max_len ) |
Apply T.30 transmit processing to generate a block of audio samples.
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. |
References fax_modems_state_s::audio_tx_log, fax_modems_state_s::current_tx_type, fax_state_s::modems, fax_state_s::t30, t30_front_end_status(), fax_modems_state_s::transmit, fax_modems_state_s::transmit_on_idle, and fax_modems_state_s::tx_handler.