Here is a list of all documented variables with links to the class documentation for each member:

- f -

false_string : true_false_string
fg_color : _seq_analysis_item
field_id : col_custom_t
file_duration : capture_options_tag
file_encap_type : _summary_tally
file_interval : capture_options_tag
file_length : _summary_tally
file_off : _frame_data
file_packets : capture_options_tag
file_sha1 : _summary_tally
file_sha256 : _summary_tally
file_type : _summary_tally
filename : _summary_tally, _wslua_plugin
filter_calls_fwd : _voip_calls_tapinfo
filter_str : if_filter_opt_s
filter_stream_fwd : _rtpstream_tapinfo
filter_stream_rev : _rtpstream_tapinfo
filter_string : _srt_stat_table, _stat_tap_table
filtered : _conversation_item_t, _endpoint_item_t
filtered_bytes : _summary_tally
filtered_count : _summary_tally
filtered_count_ts : _summary_tally
filtered_start : _summary_tally
filtered_stop : _summary_tally
first_byte : quic_packet_info
first_gap : _fragment_head
first_packet : _tap_rtp_stat_t
first_payload_type : _rtpstream_info
first_payload_type_name : _rtpstream_info
fixed_len : tlv_def
flags : _conversation_hash_t, _fragment_head, _fragment_item, _stats_tree_cfg, bp_block_canonical_t, bp_block_primary_t, field_info, tcpcl_ack_meta, tcpcl_seg_meta, wtap_opttype_t
flow : _SslRecordInfo, f5eth_tap_data
flows : _conversation_extension_tcp_t
flows_set : f5eth_tap_data
fmt_matx : col_item_t
frag_offset : bp_block_primary_t, bp_bundle_ident_t
fragment_nr_offset : _fragment_head
fragmented : _packet_info
frame : _dof_packet_data, _fragment_head, _fragment_item
frame_label : _seq_analysis_item
frame_loc : tcpcl_ack_meta, tcpcl_seg_meta
frame_loc_to_transfer : tcpcl_peer_t
frame_num : bp_bundle_t, tcpcl_frame_loc_t
frame_passed_dfilter : _ws_info_t
frame_ref_num : _frame_data
frame_time : bp_bundle_t, tcpcl_ack_meta, tcpcl_seg_meta
free_cb : tvb_real
free_func : decode_as_s
from_cap_pipe : _capture_src
from_cap_socket : _capture_src
from_pcapng : _capture_src
fromEndpoint : _mgcp_calls_info