23 April 2026

Preferred Closed Captions Muxer

cc_muxer optional format-level parameter specifies the preferred CEA-608/708 closed captions muxing engine. This may help when the default muxer does not work for a particular use case. In workflows that require a specific muxer (e.g. HDR10 encoding, non-H.264/H.265 codecs), this preference will be ignored.

<?xml version="1.0"?>
<query>
    <userid>[UserID]</userid> <!-- required -->
    <userkey>[UserKey]</userkey> <!-- required -->
    <action>[Action]</action> <!-- required -->
    <source>[SourceFile]</source> <!-- required -->
    <format>
        <output>[OutputFormat]</output> <!-- required-->
        <cc_muxer>[manzanita|edc1]</cc_muxer>
        <closed_captions>
            <source>[CCSource]</source>
            <mux_type>[cea-608|cea-708]</mux_type>
        </closed_captions>
    </format>
</query>

{
  "query": {
    "userid": "[UserID]", // required
    "userkey": "[UserKey]", // required
    "action": "[Action]", // required
    "source": "[SourceFile]", // required
    "format": {
      "output": "[OutputFormat]",
      "cc_muxer": "[manzanita|edc1]",
      "closed_captions": [
        {
          "source": "[CCSource]",
          "mux_type": "[cea-608|cea-708]"
        }
      ]
    }
  }
}

Parameter	Description	Allowed Values	Default Value
cc_muxer	Preferred method for muxing CEA-608/708 closed captions into the output video	manzanita, edc1	none