mediagoblin-website/theme/templates/campaign_video.html

<video class="video-js vjs-default-skin"
       width="768"
       height="432"
       controls="controls"
       preload="metadata"
       poster="/images/campaign/video2_poster-surveillance.png"
       data-setup="">
  <source src="http://0ad234850b34c1ebd620-6d473e87a2e70e18945218dbb27a6c68.r68.cf2.rackcdn.com/mediagoblin_campaign2_video.webm"
          type="video/webm; codecs=&quot;vp8, vorbis&quot;" />
  <source src="http://0ad234850b34c1ebd620-6d473e87a2e70e18945218dbb27a6c68.r68.cf2.rackcdn.com/mediagoblin_campaign2_video-medium.mp4"
          type="video/mp4" />
  <track kind="captions"
         src="/files/video_translations_2014/mediagoblin.srt"
         srclang="en"
         label="English"
         default />
  <track kind="captions"
         src="/files/video_translations_2014/mediagoblin.es.srt"
         label="Spanish"
         srclang="es" />
  <track kind="captions"
         src="/files/video_translations_2014/mediagoblin.fr.srt"
         label="French"
         srclang="fr" />
  <track kind="captions"
         src="/files/video_translations_2014/mediagoblin.cs.srt"
         label="Czech"
         srclang="cs" />
  <track kind="captions"
         src="/files/video_translations_2014/mediagoblin.nl.srt"
         label="Dutch"
         srclang="nl" />
  <track kind="captions"
         src="/files/video_translations_2014/mediagoblin.fi.srt"
         label="Finnish"
         srclang="fi" />
  <track kind="captions"
         src="/files/video_translations_2014/mediagoblin.de.srt"
         label="German"
         srclang="de" />
  <track kind="captions"
         src="/files/video_translations_2014/mediagoblin.it.srt"
         label="Italian"
         srclang="it" />

  <div class="no_html5">Sorry, this video will not work because
    your web browser does not support HTML5
    video.<br/>You can get a modern web browser that
    can play this video at <a href="http://getfirefox.com">
    http://getfirefox.com</a>!</div>
</video>