New media player plugin based on GStreamer framework

Comments

• sebastiaan

  December 2013 edited 5:16AM

  Hi Daniel,

  Great work! Indeed, it works really well. When I package the next 2.8.0 pre-release, I'll include the media_player_gst plug-in as well.

  Cheers and merry Christmas,
  Sebastiaan

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

  December 2013 edited 5:16AM

  Great work! Indeed, it works really well. When I package the next 2.8.0 pre-release, I'll include the media_player_gst plug-in as well.

  When I wrote this, it slipped my mind that the software stack that is required for the media_player_gst is a bit too large to include by default. But if we manage to trim this down, we can include the media_player_gst by default.

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

  December 2013 edited 5:16AM

  No we need only a fraction of the plugins that are included with gstreamer. I'm certain we can trim it down quite a lot. I've started doing so, but with limited success up until now. Nevertheless I'll get there!

  
• Daniel

  December 2013 edited 5:16AM

  What's your limit on the file-size? I already managed to trim the whole framework down to 150 MB and that's just my first go. We can also sacrifice on some codecs, meaning that less file formats are supported, but if we were never going to use these in the first place why not?

  
• mjackie

  January 2014 edited 5:16AM

  Hello,
  I'm very new to OpenSesame and was hoping for some help. I installed the gst plugin, however, when I try to drag the icon into the experiment, the following message appears: "Failed to load plugin 'media_player_gst'. Error: cannot import name osexception". I'm using a mac. Any suggestions?
  Thanks,
  Mike
• sebastiaan

  January 2014 edited 5:16AM

  Hi Mike,

  The osexception class is only available in OpenSesame 2.8.0, i.e. the current development version. I added a small fix for backwards compatibility with earlier version of OpenSesame. To get this fix you should get the latest snapshot from my repository (Daniel is away the moment):

  • https://github.com/smathot/media_player_gst

  The media_player_gst player has been tested mostly with OpenSesame 2.8.0 though, so there is a chance that you will run into more issues. But it's worth a shot to try the latest version from the repository linked to above.

  Cheers!
  Sebastiaan

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

  February 2014 edited 5:16AM

  Does anyone have feedback on how this plugin works for them and if the above problems have been solved? I would really like to know.

  
• tazimm

  March 2014 edited 5:16AM

  Failed to load plug-in 'media_player_gst'
  line: 61
  exception message: __init__() got an unexpected keyword argument 'builtins'
  exception type: TypeError
  
  Traceback (also in debug window):
    File "/usr/lib/pymodules/python2.7/libqtopensesame/qtopensesame.py", line 1350, in add_item
      self.experiment, None, self.experiment.item_prefix())
    File "/usr/lib/pymodules/python2.7/libopensesame/plugins.py", line 295, in load_plugin
      item = item_class(item_name, experiment, string)
    File "/home/raid1/winklermax/plugins/media_player_gst/media_player_gst.py", line 923, in __init__
      qtautoplugin.__init__(self, __file__)
    File "/usr/lib/pymodules/python2.7/libqtopensesame/items/qtautoplugin.py", line 30, in __init__
      qtplugin.__init__(self, plugin_file)
    File "/usr/lib/pymodules/python2.7/libqtopensesame/items/qtplugin.py", line 62, in __init__
      qtitem.qtitem.__init__(self)
    File "/usr/lib/pymodules/python2.7/libqtopensesame/items/qtitem.py", line 47, in __init__
      self.init_edit_widget()
    File "/usr/lib/pymodules/python2.7/libqtopensesame/items/qtautoplugin.py", line 102, in init_edit_widget
      syntax=c[u'syntax'], tooltip=c[u'tooltip'])
    File "/usr/lib/pymodules/python2.7/libqtopensesame/items/qtplugin.py", line 362, in add_editor_control
      qprogedit.addTab(label)
    File "/usr/lib/pymodules/python2.7/QProgEdit/_qtabmanager.py", line 109, in addTab
      handler=self.handler, focusOutHandler=self.focusOutHandler)
    File "/usr/lib/pymodules/python2.7/QProgEdit/_qprogedit.py", line 69, in __init__
      self.editor = QEditor(self, lang=lang)
    File "/usr/lib/pymodules/python2.7/QProgEdit/_qeditor.py", line 50, in __init__
      self.setLang(lang)
    File "/usr/lib/pymodules/python2.7/QProgEdit/_qeditor.py", line 241, in setLang
      self.validate()
    File "/usr/lib/pymodules/python2.7/QProgEdit/_qeditor.py", line 289, in validate
      for l, s in validator(self.text()):
    File "/usr/lib/pymodules/python2.7/QProgEdit/validate/_python.py", line 61, in python
      for msg in Checker(c, builtins=_builtins).messages:
  TypeError: __init__() got an unexpected keyword argument 'builtins'
  

  This is all I get so far, just by inserting the module into my experiment.
• Daniel

  March 2014 edited 5:16AM

  This rather appears to be an error in QProgEdit to me. Are you running from source? If so, update that package by getting the latest version from https://github.com/smathot/QProgEdit and try again. Let me know if it works.

  
• sebastiaan

  March 2014 edited 5:16AM

  This is actually due to an outdated version of pyflakes, the module that is used by QProgEdit to validate Python code. See also:

  • https://github.com/smathot/OpenSesame/issues/225

  The solution would simply be to update pyflakes. At any rate, it's not due to the media_player_gst plug-in!

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

  March 2014 edited March 2014

  The error is gone. Thanks

  All fine!
• samuelmehr

  December 2014 edited December 2014

  I'm trying to get GStreamer to run and I can't even get to the stage of the plugin appearing in Open Sesame. I've followed the instructions on both OSX and Win7. With a default installation of the GStreamer framework and copying the plugin files to the /opensesame/plugins/media_player_gst directory ... is there something else I need to do? Thanks.
• samuelmehr

  December 2014 edited 5:16AM

  ah, finally got it to work! I think something was funky in my windows installation (running on boot camp) that made open sesame unable to detect the plugin... all better now!
• flo

  December 2015 edited 5:16AM

  Hi.

  I am about a year late to the party, but...

  I need to play a video at the beginning of my experiment. The default video_player item doesn't seem to work for me (see my post here).

  I am building the experiment using OpenSesame 2.9.6 on Mac OS Yosemite but I will run the experiment on a tablet using the droid back-end. Will this media player plugin allow me to do that?

  Thanks!

  • Florian
• Daniel

  February 2016 edited 5:16AM

  Hi Florian,
  Sadly no, there is no support for video playback on Android devices yet.

  
• juliakers10

  December 2017

  Hi Daniel,
  the link that reads " the GStreamer SDK website" in your original note of the plugin and installation instructions is a broken link. Could you please direct me to this site as I am trying to download!
  Best,
  J
• eduard

  December 2017

  Hi J,

  This here:https://gstreamer.freedesktop.org/ is there website. There are also download links.

  Good luck,

  Eduard