Looking for a scenario for the video popup displaying and playing video files on video file upload.
Liferay DXP 7.3
Liferay DXP 7.4
By default, Documents and Media don’t generate previews for audio and video files. Using Liferay’s Xuggler integration, there is a possibility to convert and generate previews for these files. If there is no Xuggler installed on your server, it can install via the External Services tab under Server Server Administration. there is some help here to install Xuggler on your server.
Xuggler is only for version 7.3 and for DXP 7.4 there is FFmpeg for Audio and Video Previews. Documents and Media provide integration with the FFmpeg multimedia framework for generating audio and video file previews. To enable this there is documentation here: Enabling FFmpeg for Audio and Video Previews.