I am working on getting an experiment up on pavlovia which will simply present videos with sound and collect key-press responses. My stimuli consists of separate audio (.wav) and video (currently .mpeg) files which are played simultaneously using the sound and movie components in builder. I have been able to make this run locally and am in the process of building it again from scratch while frequently synching to pavlovia and debugging.
The problem I am having is that the video is not playing. The audio plays fine but the video appears as a black square in the middle of the screen. I can manipulate said square with the size and position parameters in the video component and the trial plays without giving an error or crashing - so I think the video file is being called but it isn’t showing correctly.
I’ve seen other video issues on the discourse addressed by reformatting the files themselves so I had hoped that converting to .mp4 would be the fix. However, I ran a test with a different .mp4 video file that a labmate has had formatted at h.264 (as recommended elsewhere) with no luck. That file plays fine on her pavlovia experiment but is another black box for me.
If anyone can shed any light on getting these videos playing I would appreciate it very much!
*note: I have shared the pavlovia link below in case anyone would like to have a look at the files - so far it’s just a test of the movie and sound components calling a single file in each. I’ll eventually create loops and call the trials from .csv files in case that has any bearing on things.