| Psychtoolbox || Psychophysics Toolbox is a free set of Matlab and GNU/Octave functions for vision research. || Yes || Python installer || https://www.psychtoolbox.org/PsychtoolboxDownload
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| Gstreamer || ||
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| Gstreamer || GStreamer is a library for constructing graphs of media-handling components. || Yes || Windows Installer || http://gstreamer.freedesktop.org/download/