t31_t38_front_end_state_t Struct Reference

#include <t31.h>

Public Attributes
t38_core_state_t	t38
	Core T.38 IFP support.
int	timed_step
	The current transmit step being timed.
bool	rx_data_missing
	True is there has been some T.38 data missed.
int	octets_per_data_packet
	The number of octets to send in each image packet (non-ECM or ECM) at the current rate and the current specified packet interval.
hdlc_tx_state_t	hdlc_tx_non_ecm
	An HDLC context used when sending HDLC messages to the terminal port as if it were non-ECM data (ECM mode support).
hdlc_rx_state_t	hdlc_rx_non_ecm
	An HDLC context used when receiving HDLC messages from the terminal port. as if it were non-ECM data (ECM mode support).
struct {
uint8_t   buf [260]
int   len
}	hdlc_rx
struct {
int   extra_bits
	The number of extra bits in a fully stuffed version of the contents of the HDLC transmit buffer. This is needed to accurately estimate the playout time for this frame, through an analogue modem.
}	hdlc_tx
t31_hdlc_state_t	hdlc_from_t31
int	ecm_mode
	True if we are using ECM mode. This is used to select HDLC faking, which is necessary with clunky class 1 modems.
int	non_ecm_trailer_bytes
	Counter for trailing non-ECM bytes, used to flush out the far end's modem.
int	next_tx_indicator
	The next queued tramsit indicator.
int	current_tx_data_type
	The current T.38 data type being transmitted.
int	current_rx_type
	The current operating mode of the receiver.
int	current_tx_type
	The current operating mode of the transmitter.
int	tx_bit_rate
	Current transmission bit rate.
span_sample_timer_t	samples
	A "sample" count, used to time events.
span_sample_timer_t	next_tx_samples
	The value for samples at the next transmission point.
span_sample_timer_t	timeout_tx_samples
	The current transmit timeout.
span_sample_timer_t	timeout_rx_samples
	The current receive timeout.

Detailed Description

Analogue FAX front end channel descriptor. This defines the state of a single working instance of an analogue line FAX front end.

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

• private/t31.h