Media Analytics is a plugin for Matomo (fka Piwik), offering extended media analytics.
For example, it reports avarage times spent watching a video, how far the viewers reach in a video, in which resolution a video has been played and much more.
Media Analytics is a paid extension for Matomo and can be purchased here:
https://plugins.matomo.org/MediaAnalytics
In VIMP, it has to be enabled at Configuration -> Matomo Analytics -> Enable Media Analytics.