#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include "spandsp/stdbool.h"
#include "floating_fudge.h"
#include "spandsp/telephony.h"
#include "spandsp/alloc.h"
#include "spandsp/fast_convert.h"
#include "spandsp/logging.h"
#include "spandsp/bit_operations.h"
#include "spandsp/bitstream.h"
#include "spandsp/complex.h"
#include "spandsp/vector_float.h"
#include "spandsp/complex_vector_float.h"
#include "spandsp/vector_int.h"
#include "spandsp/complex_vector_int.h"
#include "spandsp/modem_echo.h"
#include "spandsp/async.h"
#include "spandsp/power_meter.h"
#include "spandsp/arctan2.h"
#include "spandsp/dds.h"
#include "spandsp/crc.h"
#include "spandsp/complex_filters.h"
#include "spandsp/v29rx.h"
#include "spandsp/v34.h"
#include "spandsp/private/bitstream.h"
#include "spandsp/private/logging.h"
#include "spandsp/private/modem_echo.h"
#include "spandsp/private/power_meter.h"
#include "spandsp/private/v34.h"
#include "v22bis_rx_1200_rrc.h"
#include "v22bis_rx_2400_rrc.h"
#include "v34_rx_2400_low_carrier_rrc.h"
#include "v34_rx_2400_high_carrier_rrc.h"
#include "v34_rx_2743_low_carrier_rrc.h"
#include "v34_rx_2743_high_carrier_rrc.h"
#include "v34_rx_2800_low_carrier_rrc.h"
#include "v34_rx_2800_high_carrier_rrc.h"
#include "v34_rx_3000_low_carrier_rrc.h"
#include "v34_rx_3000_high_carrier_rrc.h"
#include "v34_rx_3200_low_carrier_rrc.h"
#include "v34_rx_3200_high_carrier_rrc.h"
#include "v34_rx_3429_rrc.h"
#include "v34_local.h"
#include "v34_tables.h"
#include "v34_superconstellation_map.h"
#include "v34_convolutional_coders.h"
#include "v34_shell_map.h"
#include "v34_probe_signals.h"

Macros
#define	M_PI 3.14159265358979323846264338327

#define	FP_Q9_7_TO_F(x)

#define	CARRIER_NOMINAL_FREQ 1800.0f

#define	EQUALIZER_DELTA 0.21f

#define	EQUALIZER_SLOW_ADAPT_RATIO 0.1f

#define	V34_TRAINING_SEG_1 0

#define	V34_TRAINING_SEG_4 0

#define	V34_TRAINING_END 0

#define	V34_TRAINING_SHUTDOWN_END 0

#define	complex_sig_set(re, im)

#define	complex_sig_t complexf_t

#define	TRAINING_SCALE(x)

#define	BYPASS_VITERBI

Enumerations
enum	{ TRAINING_TX_STAGE_NORMAL_OPERATION_V34 = 0 , TRAINING_TX_STAGE_NORMAL_OPERATION_CC = 1 , TRAINING_TX_STAGE_PARKED }

Functions
float	v34_rx_carrier_frequency (v34_state_t *s)

void	v34_put_mapping_frame (v34_rx_state_t *s, int16_t bits[16])

int	v34_rx_fillin (v34_state_t *s, int len)
	Fake processing of a missing block of received V.34 modem audio samples.

int	v34_rx (v34_state_t *s, const int16_t amp[], int len)
	Process a block of received V.34 modem audio samples.

void	v34_rx_set_signal_cutoff (v34_state_t *s, float cutoff)

void	v34_set_put_bit (v34_state_t s, span_put_bit_func_t put_bit, void user_data)
	Change the put_bit function associated with a V.34 modem context.

void	v34_set_put_aux_bit (v34_state_t s, span_put_bit_func_t put_bit, void user_data)
	Change the put_aux_bit function associated with a V.34 modem context.

int	v34_rx_restart (v34_state_t *s, int baud_rate, int bit_rate, int high_carrier)

void	v34_set_qam_report_handler (v34_state_t s, qam_report_handler_t handler, void user_data)

Macro Definition Documentation

◆ complex_sig_set

#define complex_sig_set	(		re,
			im )

Value:

complex_setf(re,im)

◆ FP_Q9_7_TO_F

#define FP_Q9_7_TO_F ( x )

Value:

((float) x/128.0f)

◆ TRAINING_SCALE

#define TRAINING_SCALE ( x )

Value:

(x)

Function Documentation

◆ v34_rx()

int v34_rx	(	v34_state_t *	s,
		const int16_t	amp[],
		int	len )

Process a block of received V.34 modem audio samples.

Parameters

s	The modem context.
amp	The audio sample buffer.
len	The number of samples in the buffer.

Returns: The number of samples unprocessed.

References v34_rx_state_t::sample_time.

◆ v34_rx_carrier_frequency()

float v34_rx_carrier_frequency ( v34_state_t * s )

Get the current received carrier frequency.

Parameters

s	The modem context.

Returns: The frequency, in Hertz.

References dds_frequency(), and v34_rx_state_t::v34_carrier_phase_rate.

◆ v34_rx_fillin()

int v34_rx_fillin	(	v34_state_t *	s,
		int	len )

Fake processing of a missing block of received V.34 modem audio samples.

Fake processing of a missing block of received V.34 modem audio samples. (e.g due to packet loss).

Parameters

s	The modem context.
len	The number of samples to fake.

Returns: The number of samples unprocessed.

References v34_rx_state_t::carrier_phase, dds_advance(), dds_advancef(), v34_state_s::logging, span_log(), and v34_rx_state_t::v34_carrier_phase_rate.

◆ v34_rx_set_signal_cutoff()

void v34_rx_set_signal_cutoff	(	v34_state_t *	s,
		float	cutoff )

Set the power level at which the carrier detection will cut in

Parameters

s	The modem context.
cutoff	The signal cutoff power, in dBm0.

References v34_rx_state_t::carrier_off_power, v34_rx_state_t::carrier_on_power, and power_meter_level_dbm0().

Referenced by v34_init().

◆ v34_set_put_aux_bit()

void v34_set_put_aux_bit	(	v34_state_t *	s,
		span_put_bit_func_t	put_bit,
		void *	user_data )

Change the put_aux_bit function associated with a V.34 modem context.

Parameters

s	The modem context.
put_bit	The callback routine used to process the aux data received.
user_data	An opaque pointer.

References v34_rx_state_t::put_aux_bit, and v34_rx_state_t::put_aux_bit_user_data.

◆ v34_set_put_bit()

void v34_set_put_bit	(	v34_state_t *	s,
		span_put_bit_func_t	put_bit,
		void *	user_data )

Change the put_bit function associated with a V.34 modem context.

Parameters

s	The modem context.
put_bit	The callback routine used to process the data received.
user_data	An opaque pointer.

References v34_rx_state_t::put_bit, and v34_rx_state_t::put_bit_user_data.

◆ v34_set_qam_report_handler()

void v34_set_qam_report_handler	(	v34_state_t *	s,
		qam_report_handler_t	handler,
		void *	user_data )

Set a handler routine to process QAM status reports

Parameters

s	The modem context.
handler	The handler routine.
user_data	An opaque pointer passed to the handler routine.

References v34_rx_state_t::qam_report, and v34_rx_state_t::qam_user_data.

Macros

Enumerations

Functions

Macro Definition Documentation

◆ complex_sig_set

◆ FP_Q9_7_TO_F

◆ TRAINING_SCALE

Function Documentation

◆ v34_rx()

◆ v34_rx_carrier_frequency()

◆ v34_rx_fillin()

◆ v34_rx_set_signal_cutoff()

◆ v34_set_put_aux_bit()

◆ v34_set_put_bit()

◆ v34_set_qam_report_handler()