Issue playing media with PsychoPy backend
We are trying to play a video in our experiment using the opensesame-plugin-media_player_mpy plugin (software: Mac OS Catalina version 10.15, latest Opensesame version 3.2). Although the video plays fine with a Legacy (pygame) backend, we can't seem to get it working with the PsychoPy backend. We would love to just stick with Legacy, but unfortunately there were issues with getting that working with our Tobii eyetracker, so we had to switch. When we run the experiment, a grey box appears where the video should be placed, but with no video or sound.
We can see that the PsychoPy handler does most of the legwork in the process_frame() function in media_player_mpy/handlers/psychopy_handler.py, with a note to say that this is required to overcome some weird flicker that would occur if the structure were the same as that in the handlers for the other backends. Since the psychopy handler imports the OpenGL renderer, it seems like the issues might be stemming from there, e.g. perhaps in the OpenGL process_frame() or draw_frame() functions.
Have you ever had any issues with playing media with a PsychoPy backend on a MacOS before? Could you give some advice on how we might get this working?