Continuous Media Markup Language (CMML) is to audio or video what HTML is to text.^[1] CMML is essentially a timed text codec. It allows file creators to structure a time-continuously sampled data file by dividing it into temporal sections (also called clips), and provides these clips with some additional information. This information is HTML-like and is essentially a textual representation of the audio or video file. CMML enables textual searches on these otherwise binary files.^[2]

CMML is appropriate for use with all Ogg media formats, to provide subtitles and timed metadata.

CMML is deprecated; Xiph.Org Foundation recommends use Kate instead.

Example of CMML Content

<cmml>
  <stream timebase="0">
    <import src="galaxies.ogv" contenttype="video/ogg"/>
  </stream>
  <head>
    <title>Hidden Galaxies</title>
    <meta name="author" content="CSIRO"/>
  </head>
  <clip id="findingGalaxies" start="15">
    <a href="http://www.aao.gov.au/galaxies.anx#radio">
      Related video on detection of galaxies
    </a>
    <img src="galaxy.jpg"/>
    <desc>What's out there?</desc>
    <meta name="KEYWORDS" content="Radio Telescope"/>
  </clip>
</cmml>