#include <t38_gateway.h>
Public Attributes | |
t38_core_state_t | t38 |
int | ecm_allowed |
TRUE if ECM FAX mode is allowed through the gateway. | |
int | use_tep |
Use talker echo protection when transmitting. | |
int | transmit_on_idle |
If TRUE, transmit silence when there is nothing else to transmit. If FALSE return only the actual generated audio. Note that this only affects untimed silences. Timed silences (e.g. the 75ms silence between V.21 and a high speed modem) will alway be transmitted as silent audio. | |
int | supported_modems |
A bit mask of the currently supported modem types. | |
int | suppress_nsx |
int | pages_confirmed |
The number of pages for which a confirm (MCF) message was returned. | |
uint8_t | hdlc_buf [T38_TX_HDLC_BUFS][T38_MAX_HDLC_LEN] |
HDLC message buffers. | |
int | hdlc_len [T38_TX_HDLC_BUFS] |
HDLC message lengths. | |
int | hdlc_flags [T38_TX_HDLC_BUFS] |
HDLC message status flags. | |
int | hdlc_contents [T38_TX_HDLC_BUFS] |
HDLC buffer contents. | |
int | hdlc_in |
HDLC buffer number for input. | |
int | hdlc_out |
HDLC buffer number for output. | |
uint16_t | crc |
Progressively calculated CRC for HDLC messaging received from a modem. | |
uint8_t | rx_data [T38_RX_BUF_LEN] |
non-ECM and HDLC modem receive data buffer | |
int | rx_data_ptr |
uint8_t | non_ecm_tx_data [T38_NON_ECM_TX_BUF_LEN] |
non-ECM modem transmit data buffer | |
int | non_ecm_tx_in_ptr |
int | non_ecm_tx_out_ptr |
int | non_ecm_tx_latest_eol_ptr |
The location of the most recent EOL marker in the non-ECM data buffer. | |
unsigned int | non_ecm_bit_stream |
uint8_t | non_ecm_flow_control_fill_octet |
The non-ECM flow control fill octet (0xFF before the first data, and 0x00 once data has started). | |
int | non_ecm_at_initial_all_ones |
TRUE if we are in the initial all ones part of non-ECM transmission. | |
int | non_ecm_data_finished |
TRUE is the end of non-ECM data indication has been received. | |
unsigned int | non_ecm_rx_bit_stream |
The current octet being sent as non-ECM data. | |
unsigned int | non_ecm_tx_octet |
int | non_ecm_bit_no |
The current bit number in the current non-ECM octet. | |
int | non_ecm_in_octets |
int | non_ecm_out_octets |
int | non_ecm_in_rows |
int | non_ecm_out_rows |
int | non_ecm_flow_control_fill_octets |
A count of the number of non-ECM fill octets generated for flow control control purposes. | |
int | current_rx_field_class |
the current class of field being received - i.e. none, non-ECM or HDLC | |
int | in_progress_rx_indicator |
The T.38 indicator currently in use. | |
int | current_tx_data_type |
The current T.38 data type being sent. | |
int | ecm_mode |
TRUE if we are in error correcting (ECM) mode. | |
int | fast_bit_rate |
The current bit rate for the fast modem. | |
int | fast_modem |
The current fast modem type. | |
int | tcf_mode_predictable_modem_start |
TRUE if between DCS and TCF, and we want the fast image modem to start in the T.38 data at a predictable time from the end of the V.21 signal. | |
int | rx_signal_present |
TRUE if a carrier is present. Otherwise FALSE. | |
int | rx_trained |
TRUE if a modem has trained correctly. | |
tone_gen_state_t | tone_gen |
A tone generator context used to generate supervisory tones during FAX handling. | |
hdlc_rx_state_t | hdlcrx |
An HDLC context used when receiving HDLC messages. | |
hdlc_tx_state_t | hdlctx |
HDLC data used when transmitting HDLC messages. | |
fsk_tx_state_t | v21_tx |
A V.21 FSK modem context used when transmitting HDLC over V.21 messages. | |
fsk_rx_state_t | v21_rx |
A V.21 FSK modem context used when receiving HDLC over V.21 messages. | |
v17_tx_state_t | v17_tx |
A V.17 modem context used when sending FAXes at 7200bps, 9600bps 12000bps or 14400bps. | |
v17_rx_state_t | v17_rx |
A V.29 modem context used when receiving FAXes at 7200bps, 9600bps 12000bps or 14400bps. | |
v29_tx_state_t | v29_tx |
A V.29 modem context used when sending FAXes at 7200bps or 9600bps. | |
v29_rx_state_t | v29_rx |
A V.29 modem context used when receiving FAXes at 7200bps or 9600bps. | |
v27ter_tx_state_t | v27ter_tx |
A V.27ter modem context used when sending FAXes at 2400bps or 4800bps. | |
v27ter_rx_state_t | v27ter_rx |
A V.27ter modem context used when receiving FAXes at 2400bps or 4800bps. | |
dc_restore_state_t | dc_restore |
silence_gen_state_t | silence_gen |
Used to insert timed silences. | |
span_rx_handler_t * | immediate_rx_handler |
The immediately active receive signal handler, which may hop between rx_handler and dummy_rx(). | |
span_rx_handler_t * | rx_handler |
The current receive signal handler. | |
void * | rx_user_data |
An opaque pointer, passed to rx_handler. | |
span_tx_handler_t * | tx_handler |
The current transmit signal handler. | |
void * | tx_user_data |
An opaque pointer, passed to tx_handler. | |
span_tx_handler_t * | next_tx_handler |
The transmit signal handler to be used when the current one has finished sending. | |
void * | next_tx_user_data |
An opaque pointer, passed to next_tx_handler. | |
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. | |
int | fast_rx_active |
The type of fast receive modem currently active, which may be T38_NONE. | |
int | samples_to_timeout |
The number of samples until the next timeout event. | |
int | image_data_mode |
TRUE if in image data mode (as opposed to TCF mode). | |
int | short_train |
TRUE if in image data modem is to use short training. | |
int | corrupt_the_frame_to_t38 |
TRUE if we need to corrupt the HDLC frame in progress, so the receiver cannot interpret it. | |
int | corrupt_the_frame_from_t38 |
TRUE if we need to corrupt the HDLC frame in progress, so the receiver cannot interpret it. | |
int | current_rx_type |
The currently select receiver type. | |
int | current_tx_type |
The currently select transmitter type. | |
int | fax_audio_rx_log |
Audio logging file handles. | |
int | fax_audio_tx_log |
logging_state_t | logging |
Error and flow logging control. |
Core T.38 support
Referenced by t38_gateway_init(), and t38_gateway_set_supported_modems().