VLC plugin and Pygaze

jpg446 · April 2016

Hi there,

I've got an eyetracking experiment using the PyGaze plugins. Part of the experiment requires a video to be shown, which I've set up using the VLC plugin.

With PyGaze on dummy mode, the whole experiment functions just fine. However when I use it with a tracker connected (Eyelink II in this case) the video doesn't appear (black screen). On keypress the experiment continues however, so I think it's "playing" the video but not displaying it.

I've tried removing the recording start/stop away from the plugin item and the same thing happens. Also tried using Expyriment and PyGame so far.

Any ideas?

Thanks!

jpg446 · April 2016

Update:

I tested on an Eyelink 1000 and the same issue occurred.

I just restructured the experiment to work with PsychoPy moviestim from an inline and there's no problem in recording with a live tracker this way. so it seems specific to Eyelink and the VLC plugin.

So the issue was resolved for myself using this method, in case anyone else encounters it!

sebastiaan · April 2016

Hi,

Thanks for sharing the problem and the workaround. I have no idea what could have caused the problem though. I'll see if I can reproduce it.

Cheers,
Sebastiaan

jpg446 · April 2016

Okay, I discovered that this problem only happens when run in full screen mode.

Windowed and windowed-test modes will display the video no problem (not the best for tracking though I guess)

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VLC plugin and Pygaze

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