48 #if !defined(_SPANDSP_V22BIS_H_)
49 #define _SPANDSP_V22BIS_H_
51 #if defined(SPANDSP_USE_FIXED_POINT)
52 #define V22BIS_CONSTELLATION_SCALING_FACTOR 1024.0
54 #define V22BIS_CONSTELLATION_SCALING_FACTOR 1.0
59 V22BIS_GUARD_TONE_NONE,
60 V22BIS_GUARD_TONE_550HZ,
61 V22BIS_GUARD_TONE_1800HZ
70 #if defined(__cplusplus)
95 #if defined(SPANDSP_USE_FIXED_POINT)
227 #if defined(__cplusplus)
void(* modem_status_func_t)(void *user_data, int status)
Definition: async.h:113
void(* put_bit_func_t)(void *user_data, int bit)
Definition: async.h:107
int(* get_bit_func_t)(void *user_data)
Definition: async.h:110
Definition: private/logging.h:34
Definition: private/v22bis.h:79
int bit_rate
The maximum permitted bit rate of the modem. Valid values are 1200 and 2400.
Definition: private/v22bis.h:81
bool calling_party
True is this is the calling side modem.
Definition: private/v22bis.h:83
void * put_bit_user_data
A user specified opaque pointer passed to the put_bit callback routine.
Definition: private/v22bis.h:91
put_bit_func_t put_bit
The callback function used to put each bit received.
Definition: private/v22bis.h:89
void * get_bit_user_data
A user specified opaque pointer passed to the get_bit callback routine.
Definition: private/v22bis.h:87
get_bit_func_t get_bit
The callback function used to get the next bit to be transmitted.
Definition: private/v22bis.h:85
v22bis_state_t * v22bis_init(v22bis_state_t *s, int bit_rate, int guard, bool calling_party, get_bit_func_t get_bit, void *get_bit_user_data, put_bit_func_t put_bit, void *put_bit_user_data)
Initialise a V.22bis modem context.
Definition: v22bis_tx.c:691
void v22bis_rx_signal_cutoff(v22bis_state_t *s, float cutoff)
Definition: v22bis_rx.c:157
int v22bis_remote_loopback(v22bis_state_t *s, bool enable)
Request a loopback 2 for a V.22bis modem context.
Definition: v22bis_tx.c:678
void v22bis_tx_power(v22bis_state_t *s, float power)
Adjust a V.22bis modem transmit context's output power.
Definition: v22bis_tx.c:535
int v22bis_get_current_bit_rate(v22bis_state_t *s)
Report the current operating bit rate of a V.22bis modem context.
Definition: v22bis_tx.c:685
void v22bis_set_put_bit(v22bis_state_t *s, put_bit_func_t put_bit, void *user_data)
Change the put_bit function associated with a V.22bis modem context.
Definition: v22bis_tx.c:605
int v22bis_rx(v22bis_state_t *s, const int16_t amp[], int len)
Process a block of received V.22bis modem audio samples.
Definition: v22bis_rx.c:779
logging_state_t * v22bis_get_logging_state(v22bis_state_t *s)
Get the logging context associated with a V.22bis modem context.
Definition: v22bis_tx.c:619
void v22bis_set_modem_status_handler(v22bis_state_t *s, modem_status_func_t handler, void *user_data)
Change the modem status report function associated with a V.22bis modem receive context.
Definition: v22bis_tx.c:612
float v22bis_rx_carrier_frequency(v22bis_state_t *s)
Definition: v22bis_rx.c:139
int v22bis_restart(v22bis_state_t *s, int bit_rate)
Reinitialise an existing V.22bis modem context.
Definition: v22bis_tx.c:625
int v22bis_free(v22bis_state_t *s)
Free a V.22bis modem receive context.
Definition: v22bis_tx.c:756
int v22bis_rx_fillin(v22bis_state_t *s, int len)
Fake processing of a missing block of received V.22bis modem audio samples.
Definition: v22bis_rx.c:922
void v22bis_set_get_bit(v22bis_state_t *s, get_bit_func_t get_bit, void *user_data)
Change the get_bit function associated with a V.22bis modem context.
Definition: v22bis_tx.c:598
int v22bis_release(v22bis_state_t *s)
Release a V.22bis modem receive context.
Definition: v22bis_tx.c:750
float v22bis_rx_signal_power(v22bis_state_t *s)
Definition: v22bis_rx.c:151
int v22bis_request_retrain(v22bis_state_t *s, int bit_rate)
Request a retrain for a V.22bis modem context.
Definition: v22bis_tx.c:643
int v22bis_tx(v22bis_state_t *s, int16_t amp[], int len)
Generate a block of V.22bis modem audio samples.
Definition: v22bis_tx.c:472
void v22bis_rx_set_qam_report_handler(v22bis_state_t *s, qam_report_handler_t handler, void *user_data)
Definition: v22bis_rx.c:996
float v22bis_rx_symbol_timing_correction(v22bis_state_t *s)
Definition: v22bis_rx.c:145
int v22bis_rx_equalizer_state(v22bis_state_t *s, complexf_t **coeffs)
Get a snapshot of the current equalizer coefficients.
Definition: v22bis_rx.c:176