U f{j#@sddlmZddlmZddlmZddlmZddlmZddl Z ddl m Z d d Z ed d Zed dZeddZddZddZdddZdS))Struct) namedtuple)modf)datetime)SEEK_ENDN)warncCs2tdd}td}||||||jS)aW Read TEEG structure from an open CNT file. # from TEEG structure in http://paulbourke.net/dataformats/eeg/ typedef struct { char Teeg; /* Either 1 or 2 */ long Size; /* Total length of all the events */ long Offset; /* Hopefully always 0 */ } TEEG; Teegzevent_type total_length offsetz.parser)rrr ValueError)Z event_typerrrr_get_event_parserDs rcCsHztt||\}}Wntk r:tdYdSX||fSdS)Nz= Could not parse meas date from the header. Setting to None.)rrstrptime timestamprr)Z session_dateZ date_formatZ frac_partZint_partrrr_session_date_2_meas_dateYsr!int32c Csd}d}d}|}|dtdkrF||tj|ddd\}n|d krVtd |d krbd nd}||tj|ddd\}||tj|d d d\} ddt| |t| t|}|||S)aCompute `event_table_position`. When recording event_table_position is computed (as accomulation). If the file recording is large then this value overflows and ends up pointing somewhere else. (SEE #gh-6535) If the file is smaller than 2G the value in the SETUP is returned. Otherwise, the address of the table position is computed from: n_samples, n_channels, and the bytes size. iri`ivrgeAzs&