[solved] Problems Using Multiple Videos

Comments

• sebastiaan

  June 2013 edited 6:12PM

  Hi,

  The video_player hasn't been updated for a long time (it's deprecated in favor of these options, although these may not work for Mac OS). What you are running into is that the video_player doesn't support the [variable] notation. Only direct names work.

  Fortunately, you can work around this through a hack, by placing the following code in the Prepare phase of an inline_script item that you place before the video_player:

  exp.items['video_player'].video_src = self.get('Actor') + '.avi'
  

  This script sets the video_src variable for the video_player item, and allows you to refer to another variable, in your case Actor. Does that make sense?

  Hope this helps!

  Cheers,
  Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• Plc4MieHaed

  June 2013 edited June 2013

  Hi Sebastiaan,

  I'm not very good with code but tried what you said:

  

  However now I'm getting an error:

  

  Have I missed something?

  Chris
• sebastiaan

  June 2013 edited June 2013

  Hi Chris,

  Let's walk through the command. exp is the experiment object:

  exp
  

  The experiment has a property items, which is a dictionary of all the items:

  exp.items
  

  In this dictionary, the item names are the keys, so you can get the Emotion item like this:

  exp.items['Emotion']
  

  You can change attributes (i.e. variables) of the item like this:

  exp.items['Emotion'].video_src = self.get('Actor') + '.avi'
  

  Does this make sense? So the problem was that you didn't specify the name of the item, which is Emotion, but just copied the code that assumed the item was named video_player.

  Cheers!
  Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• Plc4MieHaed

  June 2013 edited 6:12PM

  Ah excellent! Haha I told you I was new to this.
  So the videos are displaying now (and in a random order which is great) but they still don't play? I just get a still image of the first frame......
  Sorry to be such a bother!

  Chris.
• sebastiaan

  June 2013 edited 6:12PM

  I just get a still image of the first frame......

  Have you set the duration to a very low value? You can set the duration to 'keypress', to play the video until you press a key, or to a value in milliseconds.

  Cheers,
  Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• Plc4MieHaed

  June 2013 edited 6:12PM

  That was it. I'd been following the catface tutorial and so I'd set the duration to 0. Excellent, it's working well now, thanks for all your help!

  Chris.