This plugin adds media support to Foswiki using MediaElement.js. MediaElement.js is an easy cross-browser HTML5 audio and video player in pure HTML and CSS while providing a Flash or Silverlight fallback for older browsers. MediaElement.js is a fully skinnable player with features like support for the <track> element, fullscreen video, and even Ambilight. It provides a consistent experience regardless of what codecs and plugins browsers support.
Note that MediaElementPlugin is not implementing a streaming media server, nor is it converting audio and video files in appropriate file formats understood by today's browsers.
For best compatibility use MP3 for audio and MP4 for video files. While supported by MediaElement.js it is not recommended to convert videos to FLV format as these files can only be displayed using a flash media player, but not natively by browsers following HTML5 specifications.
Also try to keep audio and video files small, i.e. don't try to upload rather long media files to Foswiki trying to play them back using MediaElement.js.
It is recommended to secure your attachments using Foswiki:Extensions/XSendFileContrib and not using Foswiki's native viewfile method. This will relive Foswiki from the pure delivery of the media files and instead delegate the actual process of sending over files to the HTTP server in use.
to render an audio player for your song as part of the page.