spandsp 3.0.0
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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_put_bit_func_t | put_bit |
The callback function used to put each bit received. | |
void * | put_bit_user_data |
A user specified opaque pointer passed to the put_bit routine. | |
span_put_bit_func_t | put_aux_bit |
The callback function used to put each aux bit received. | |
void * | put_aux_bit_user_data |
A user specified opaque pointer passed to the put_aux_bit routine. | |
qam_report_handler_t | qam_report |
A callback function which may be enabled to report every symbol's constellation position. | |
void * | qam_user_data |
A user specified opaque pointer passed to the qam_report callback routine. | |
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. | |
int | stage |
int | received_event |
uint32_t | scramble_reg |
The register for the data scrambler. | |
int | scrambler_tap |
The scrambler tap which selects between the caller and answerer scramblers. | |
uint16_t | v0_pattern |
power_meter_t | power |
A power meter, to measure the HPF'ed signal power in the channel. | |
int32_t | carrier_on_power |
The power meter level at which carrier on is declared. | |
int32_t | carrier_off_power |
The power meter level at which carrier off is declared. | |
bool | signal_present |
bitstream_state_t | bs |
uint32_t | bitstream |
uint32_t | r0 |
Mapping frame output. | |
uint16_t | qbits [8] |
uint16_t | ibits [4] |
int | mjk [8] |
(x0,y0) (x1,y1)... | |
int | step_2d |
v34_parameters_t | parms |
Parameters for the current bit rate and baud rate. | |
complexi16_t | yt |
yt's are the noise corrupted points fed to the viterbi decoder. Assumed to have format 9:7 (7 fractional bits) | |
complexi16_t | xt [4] |
complexi16_t | x [3] |
complexi16_t | h [3] |
complexi16_t | xy [2][4] |
These are quantized points in the respective 2D coset (0,1,2,3) | |
viterbi_t | viterbi |
int16_t | ww [3] |
ww contains old z, current z and current w | |
uint32_t | carrier_phase |
The current phase of the carrier (i.e. the DDS parameter). | |
int32_t | carrier_phase_rate_save |
The carrier update rate saved for reuse when using short training. | |
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). | |
float | rrc_filter [27] |
The root raised cosine (RRC) pulse shaping filter buffer. | |
int | rrc_filter_step |
Current offset into the RRC pulse shaping filter buffer. | |
int | eq_step |
Current read offset into the equalizer buffer. | |
int | eq_put_step |
Current write offset into the equalizer buffer. | |
int | shaper_sets |
float | agc_scaling |
The scaling factor assessed by the AGC algorithm. | |
float | agc_scaling_save |
The previous value of agc_scaling, needed to reuse old training. | |
ted_t | pri_ted |
ted_t | cc_ted |
float | carrier_track_p |
The proportional part of the carrier tracking filter. | |
float | carrier_track_i |
The integral part of the carrier tracking filter. | |
const v34_rx_shaper_t * | shaper_re |
const v34_rx_shaper_t * | shaper_im |
int | total_baud_timing_correction |
The total symbol timing correction since the carrier came up. This is only for performance analysis purposes. | |
int | baud_half |
The current half of the baud. | |
int | round_trip_delay_estimate |
The measured round trip delay estimate, in sample times. | |
int | duration |
int | bit_count |
int | target_bits |
uint16_t | crc |
uint32_t | last_angles [2] |
uint8_t | info_buf [25] |
Buffer for receiving info frames. | |
int | super_frame |
int | data_frame |
int | s_bit_cnt |
int | aux_bit_cnt |
uint8_t | rxbuf [50] |
int | rxbits |
int | rxptr |
int | blip_duration |
v34_capabilities_t | far_capabilities |
int | carrier_drop_pending |
Whether or not a carrier drop was detected and the signal delivery is pending. | |
int | low_samples |
A count of the current consecutive samples below the carrier off threshold. | |
int16_t | high_sample |
A highest magnitude sample seen. | |
bool | info0_acknowledgement |
union { | |
info1a_t info1a | |
info1c_t info1c | |
infoh_t infoh | |
}; | |
int | step |
int | persistence1 |
int | persistence2 |
int | mp_count |
int | mp_len |
int | mp_and_fill_len |
int | mp_seen |
int | dft_ptr |
complexf_t | dft_buffer [160] |
float | l1_l2_gains [25] |
float | l1_l2_phases [25] |
float | base_phase |
complexf_t | last_sample |
int | l1_l2_duration |
int | current_demodulator |
span_sample_timer_t | sample_time |
Used to align the transmit and receive positions, to ensure things like round trip delay are properly handled. | |
span_sample_timer_t | tone_ab_hop_time |
logging_state_t * | logging |
bool v34_rx_state_t::half_duplex_source |
The current source end when in half-duplex mode
Referenced by v34_half_duplex_change_mode(), and v34_restart().
bool v34_rx_state_t::half_duplex_state |
The current operating state when in half-duplex mode
Referenced by v34_half_duplex_change_mode().