I’m about to run an experiment with a large number of videos so my total resource file is large (~1GB). It takes about 10-15 min to load all the resources in the U.S., and with a vpn (I’m now in China) it could take more than an hour. I wonder if there is a way to compress the videos without losing quality (currently my video is already low in resolution) so that my subjects can load the resources faster (ideally within 5 min). Or is there special strategy to live with large resource folder without video compression? Thanks in advance!
Hello! There are a few possible options here (heads up that dynamic loading of resources should be available in the new release!) but as another possible solution would it be appropriate so consider embedding videos from, Youtube, OSF or vimeo? There is a demo of how to do that in the brooks template from @wakecarterPsychoPy Online Demos
Hi Becca–thanks for sharing. I have a quick question: Will updating to a new Psychopy version cause some problem to the old program (like some of the code need to be modified…)? I’m hesitating whether to download the newest version.
Understandable concern, and I cannot promise it won’t (you are right to have hesitance over beta releases). Before making any suggestions there- could you tell us more about your study? e.g. do you want the videos to autoplay - so how long is each video? it will be easier to suggest if embedding a html is more appropriate/possible!
The experiment includes two parts. In the first part I will present subjects with sequences of short videos (1~6s, video will autoplay and the duration is defined is the condition file). Subjects will simply move mouse on the slider to report emotion ratings on the videos throughout each sequence (I have some code modified from wakefield’s interactive slider). In the second part their memory for the movies will be tested–screenshots of videos from a same studied sequence will be displayed on the screen and subjects will be asked to sort the screenshots to the original sequence order by dragging and dropping (code modified from the online Drag&Drop demo).
OK in that case if embedding was the route taken you couldn’t stream from drive or OSF (which leaves youtube, but I am worried about ads in youtube Delay in playing videos and problems with Youtube embedding or vimeo (which I haven’t used) @wakecarter do you know if you can autoplay from vimeo?
The alternative at the moment would be to wait until there is something more workable in the release
Paste the URL and format it to look like this: <iframe src="https://player.vimeo.com/video/486333942?autoplay=1" width="640" height="360" frameborder="0" allow="autoplay; fullscreen" allowfullscreen></iframe>
Hi Thomas–Thanks for your suggestion on video compression. I believe I followed all the steps in the guide but after I converted all the videos, some videos could not be played. I got the following error. Do you have any idea what might cause this error? Thank you!
