v34_tx_state_t Struct Reference

Public Attributes
bool	calling_party
	True if this is the calling side modem.
bool	duplex
	True if this is a full duplex modem.
bool	half_duplex_source
bool	half_duplex_state
int	bit_rate
span_get_bit_func_t	get_bit
	The callback function used to get the next bit to be transmitted.
void *	get_bit_user_data
	A user specified opaque pointer passed to the get_bit function.
span_get_bit_func_t	get_aux_bit
	The callback function used to get the next aux channel bit to be transmitted.
void *	get_aux_bit_user_data
	A user specified opaque pointer passed to the get_aux_bit function.
int	baud_rate
	The current baud rate selection, as a value from 0 to 5.
bool	high_carrier
	True if using the higher of the two carrier frequency options.
uint32_t	scramble_reg
	The register for the data scrambler.
int	scrambler_tap
	The scrambler tap which selects between the caller and answerer scramblers.
bool	use_non_linear_encoder
complexf_t(*	current_getbaud )(v34_state_t *s)
uint32_t	r0
	Mapping frame parsed input.
uint16_t	qbits [8]
uint16_t	ibits [4]
int	mjk [8]
	(x0,y0) (x1,y1)...
int	step_2d
bitstream_state_t	bs
uint32_t	bitstream
int	i
v34_parameters_t	parms
	Parameters for the current bit rate and baud rate.
complexi16_t	x [8+3]
	We need to remember some old x values in the C code: x[0] x[1] x[2] x[3] x[4] x[5] x[6] x[7] x[8] x[9] x[10] in V.34: x[-3] x[-2] x[-1] x[0] x[1] x[2] x[3] x[4] x[5] x[6] x[7].
complexi16_t	precoder_coeffs [3]
	Precoder coefficients.
complexi16_t	c
complexi16_t	p
int	z
int	y0
int	state
float	gain
float	rrc_filter_re [9]
	The root raised cosine (RRC) pulse shaping filter buffer.
float	rrc_filter_im [9]
complexf_t	lastbit
int	rrc_filter_step
	Current offset into the RRC pulse shaping filter buffer.
uint32_t	carrier_phase
	The current phase of the carrier (i.e. the DDS parameter).
int32_t	cc_carrier_phase_rate
	The update rate for the phase of the control channel carrier (i.e. the DDS increment).
int32_t	v34_carrier_phase_rate
	The update rate for the phase of the V.34 carrier (i.e. the DDS increment).
uint32_t	guard_phase
	The current phase of the guard tone (i.e. the DDS parameter).
int32_t	guard_phase_rate
	The update rate for the phase of the guard tone (i.e. the DDS increment).
float	guard_level
	Guard tone signal level.
int	baud_phase
	The current fractional phase of the baud timing.
int	stage
int	convolution
int	training_stage
int	current_modulator
int	diff
int	line_probe_cycles
int	line_probe_step
float	line_probe_scaling
int	tone_duration
int	super_frame
int	data_frame
int	s_bit_cnt
int	aux_bit_cnt
uint16_t	v0_pattern
uint8_t	txbuf [50]
int	txbits
int	txptr
const conv_encode_table_t *	conv_encode_table
bool	info0_acknowledgement
union {
info1a_t   info1a
info1c_t   info1c
infoh_t   infoh
};
union {
mp_t   mp
mph_t   mph
};
int	persistence2
span_get_bit_func_t	current_get_bit
	The get_bit function in use at any instant.
span_sample_timer_t	sample_time
	Used to align the transmit and receive positions, to ensure things like round trip delay are properly handled.
logging_state_t *	logging

Member Data Documentation

half_duplex_source

bool v34_tx_state_t::half_duplex_source

The current source end when in half-duplex mode

Referenced by v34_half_duplex_change_mode(), and v34_restart().

half_duplex_state

bool v34_tx_state_t::half_duplex_state

The current operating state when in half-duplex mode

Referenced by v34_half_duplex_change_mode().

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The documentation for this struct was generated from the following file:

• private/v34.h