Add parameter to stop player_lsl when data was finished iterating

[timonmerk]

First, many thanks for providing this super useful tool! The speed improvement over pylsl is really amazing!

I have a small discussion point. It would be great to provide a parameter to player_lsl that terminates the stream once it finishes running through the data once.

I think it would be simply terminating the stream once it passes this condition:

mne-lsl/mne_lsl/player/player_lsl.py

Line 244 in 948235d

if stop <= self._raw.times.size:

Probably there were also good reasons to repeat the stream, but for offline and online equivalent analyses that would be a useful feature!

[mscheltienne]

Sure, I removed this parameter/possibility at some point, but I can add it back if there is a need.
Does a n_repeat: Optional[int] = None argument sounds good to you, where None loops infintely, n_repeat = int loops the number of times requested (1 in your usecase)?

[timonmerk]

That sounds great! Thanks!

[mscheltienne]

@timonmerk Released in 1.3.0 today!

[timonmerk]

Thank you so much @mscheltienne , that was super fast!