#include <t38_core.h>
Public Attributes | |
| t38_tx_packet_handler_t * | tx_packet_handler |
| void * | tx_packet_user_data |
| t38_rx_indicator_handler_t * | rx_indicator_handler |
| t38_rx_data_handler_t * | rx_data_handler |
| t38_rx_missing_handler_t * | rx_missing_handler |
| void * | rx_user_data |
| int | data_rate_management_method |
| int | data_transport_protocol |
| int | fill_bit_removal |
| int | mmr_transcoding |
| int | jbig_transcoding |
| int | max_buffer_size |
| int | max_datagram_size |
| int | t38_version |
| int | fastest_image_data_rate |
| int | indicator_tx_count |
| The number of times an indicator packet will be sent. Numbers greater than one will increase reliability for UDP transmission. Zero is valid, to suppress all indicator packets for TCP transmission. | |
| int | data_tx_count |
| The number of times a data packet which does not end transmission will be sent. Numbers greater than one will increase reliability for UDP transmission. Zero is not valid. | |
| int | data_end_tx_count |
| The number of times a data packet which ends transmission will be sent. Numbers greater than one will increase reliability for UDP transmission. Zero is not valid. | |
| int | check_sequence_numbers |
| int | tx_seq_no |
| int | rx_expected_seq_no |
| int | current_rx_indicator |
| int | current_rx_data_type |
| int | current_rx_field_type |
| int | current_tx_indicator |
| int | v34_rate |
| int | missing_packets |
| logging_state_t | logging |
| t38_tx_packet_handler_t* t38_core_state_s::tx_packet_handler |
Handler routine to transmit IFP packets generated by the T.38 protocol engine
Referenced by t38_core_send_data(), t38_core_send_data_multi_field(), and t38_core_send_indicator().
An opaque pointer passed to tx_packet_handler
Referenced by t38_core_send_data(), t38_core_send_data_multi_field(), and t38_core_send_indicator().
| t38_rx_indicator_handler_t* t38_core_state_s::rx_indicator_handler |
Handler routine to process received indicator packets
Referenced by t38_core_rx_ifp_packet().
| t38_rx_data_handler_t* t38_core_state_s::rx_data_handler |
Handler routine to process received data packets
Referenced by t38_core_rx_ifp_packet().
| t38_rx_missing_handler_t* t38_core_state_s::rx_missing_handler |
Handler routine to process the missing packet condition
Referenced by t38_core_rx_ifp_packet().
An opaque pointer passed to any of the above receive handling routines
Referenced by t38_core_rx_ifp_packet().
NOTE - Bandwidth reduction shall only be done on suitable Phase C data, i.e., MH, MR and - in the case of transcoding to JBIG - MMR. MMR and JBIG require reliable data transport such as that provided by TCP. When transcoding is selected, it shall be applied to every suitable page in a call.
Method 1: Local generation of TCF (required for use with TCP). Method 2: Transfer of TCF is required for use with UDP (UDPTL or RTP). Method 2 is not recommended for use with TCP.
Referenced by t38_set_data_rate_management_method().
The emitting gateway may indicate a preference for either UDP/UDPTL, or UDP/RTP, or TCP for transport of T.38 IFP Packets. The receiving device selects the transport protocol.
Referenced by t38_set_data_transport_protocol().
Indicates the capability to remove and insert fill bits in Phase C, non-ECM data to reduce bandwidth in the packet network.
Referenced by t38_set_fill_bit_removal().
Indicates the ability to convert to/from MMR from/to the line format to improve the compression of the data, and reduce the bandwidth, in the packet network.
Referenced by t38_set_mmr_transcoding().
Indicates the ability to convert to/from JBIG to reduce bandwidth.
Referenced by t38_set_jbig_transcoding().
For UDP (UDPTL or RTP) modes, this option indicates the maximum number of octets that can be stored on the remote device before an overflow condition occurs. It is the responsibility of the transmitting application to limit the transfer rate to prevent an overflow. The negotiated data rate should be used to determine the rate at which data is being removed from the buffer.
This option indicates the maximum size of a UDPTL packet or the maximum size of the payload within an RTP packet that can be accepted by the remote device.
This is the version number of ITU-T Rec. T.38. New versions shall be compatible with previous versions.
Referenced by t38_core_rx_ifp_packet(), and t38_set_t38_version().
The fastest data rate supported by the T.38 channel.
Referenced by t38_gateway_set_supported_modems().
TRUE if IFP packet sequence numbers are relevant. For some transports, like TPKT over TCP they are not relevent.
Referenced by t38_core_rx_ifp_packet().
The sequence number for the next packet to be transmitted
Referenced by t38_core_send_data(), t38_core_send_data_multi_field(), and t38_core_send_indicator().
The sequence number expected in the next received packet
Referenced by t38_core_rx_ifp_packet().
The current receive indicator - i.e. the last indicator received
Referenced by t38_core_rx_ifp_packet().
The current receive data type - i.e. the last data type received
Referenced by t38_core_rx_ifp_packet().
The current receive field type - i.e. the last field_type received
Referenced by t38_core_rx_ifp_packet().
The current transmit indicator - i.e. the last indicator transmitted
Referenced by t38_core_send_indicator().
The bit rate for V.34 operation
A count of missing receive packets. This count might not be accurate if the received packet numbers jump wildly.
Referenced by t38_core_rx_ifp_packet().
1.5.6