06 June 2017 - Closed Captions font_source

<?xml version="1.0"?>
<query>
    <userid><<id>></userid> <!-- required-->
    <userkey><<key>></userkey> <!-- required-->
    <action>[Action]</action> <!-- required-->
    <format>
        <!-- Format fields -->
        <closed_captions>
            <mux_type>burn-in</mux_type>
            <font_source>[FontSourceURL]</font_source>
        </closed_captions>
        <!-- Multiple closed captions params may be included in output format -->
        <closed_captions>
            <!-- closed captions params -->
        </closed_captions>
    </format>
</query>

{
    "query": {
        "userid": "<<id>>",
        "userkey": "<<key>>",
        "action": "[Action]",
        "format": {
            "closed_captions": [
                {
                    "mux_type": "burn-in",
                    "font_source": "[FontSourceURL]"
                },
                "  "
            ]
        }
    }
}