A robust Brightcove player plugin will accept all of its necessary configuration as initialization options and fall back on data attributes for defaults.

plugin-options.js

videojs.plugin('example', function(options) {
  var player = this,
      defaults,
      settings;

  // grab default configuration from data attributes
  // these will be set automatically by Video Cloud but can be provided by any other video 
  // CMS as well
  defaults = {
    // player.options() is automatically populated with any data attributes declared on 
    // the video element
    videoId: player.options()['data-video-id'],

    // you can specify defaults specific to your plugin, as well
    timeout: 5000
  };

  // mergeOptions will override parameters in the first argument with those in the second
  // the properties in settings will be what was specified in the initialization options, 
  // if provided, and the defaults otherwise
  settings = videojs.util.mergeOptions(defaults, options);

  // use the final settings
  doSomeStuff(settings.videoId);
});