[Eeglablist] XDF-importer; LSL

[Dr. Ingmar Brilmayer]

Dear List,

We are currently running experiments in which participants are allowed 
to move freely, while we record multimodal data (EEG, Eyetracking, 
video, audio). We are currently looking for an easy way to resync the 
LSL-recorded gaze data with the recording from the eyetracking software, 
to be able to use things like face recognition, surface tracking etc. on 
the world video recording of the eyetracker. Here is the problem: the 
xdf_importer automatically synchronizes the time stamps of the streams 
(which is super), but without adding a field containing the original 
timestamps (start and end time stamps of the LSL-recording in times of 
the original recording). We can, of course, look up "last_timestamp" and 
"first_timestamp" using the XDF-browser App included in LSL, but isn't 
there a way to modify the xdf_importer to add a field "first_timestamp" 
and "last_timestamp" or to include a field that contains all unsynced, 
i.e. original timestamps? Maybe some people from the mobilab plugin read 
this as well and have some ideas for their xdf import functions?

Greetings,
Ingmar