Definition and Usage¶ The <descriptorParam> elements define initial values for properties of a <media> element.The property is identified in the name attribute of the <descriptorParam> element and the value is defined in the value attribute. Syntax¶ Element Attributes Content Parent <descriptorParam> name, value -- <descriptor> Attributes¶ Name Value Description name It may receive any string value that begins with a letter or an underscore and that only contains letters, digits, <".">, and <"_">. The name attribute identifies the property of the <media> element that refers to the <descriptor> element parent of the <descriptorParam> element. value Depends on the name value. The value attribute defines an initial value for the property identified in the name attribute.