New media player plugin based on GStreamer framework
Because I have never been really happy with the limitations of the VLC based media player plugin, I have been working on a similar plugin based on the GStreamer framework. This is a well-maintained cross-platform media playing framework that has earned its merits and has been used in a lot of applications.
Benefits of the Gst based plugin are:
- Works in all backends (best in the hardware accelerated backends: psychopy and experiment).
Works on Windows, Linux and Mac.
On OSX the plugin still has some quirks such as freezing of 1080p movies on slower systems, and sometimes failure to play audio streams of a certain format.
OpenSesame renders the frames itself (opposed to the VLC plugin, which just 'hijacks' the display window from OpenSesame and dumps its video output in there). This offers a much larger degree of control and even enables the possibility of drawing items on top of the video or playing multiple movies concurrently in future!
The current version is based on GStreamer 0.10, but I'm going to see if I can port it to version 1.0 in the near future.
You can find the plugin and installation instructions at http://github.com/dschreij/media_player_gst. The latest release version can be downloaded from https://github.com/dschreij/media_player_gst/releases
If you have a chance to try it out, please let me know of your experiences and provide feedback!
Great work! Indeed, it works really well. When I package the next 2.8.0 pre-release, I'll include the
media_player_gstplug-in as well.
Cheers and merry Christmas,
When I wrote this, it slipped my mind that the software stack that is required for the
media_player_gstis a bit too large to include by default. But if we manage to trim this down, we can include the
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!
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?
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?
osexceptionclass 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):
media_player_gstplayer 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.
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.
This is all I get so far, just by inserting the module into my experiment.
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.
This is actually due to an outdated version of
pyflakes, the module that is used by
QProgEditto validate Python code. See also:
The solution would simply be to update
pyflakes. At any rate, it's not due to the
The error is gone. Thanks
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.
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!
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_playeritem 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?
Sadly no, there is no support for video playback on Android devices yet.
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!
This here:https://gstreamer.freedesktop.org/ is there website. There are also download links.