rate

Frame rate of the media. If no frame rate is specified, it is up to the application to decide on the frame rate to use.

Use numerator/denominator elements to express as a fraction frame rates that use decimals; this provides more precision. The following expresses a frame rate of 23.976 fps.

<rate type="rate">
 <numerator>24000</numerator>
	<denominator>1001</denominator>
</rate>

To express frame rates that use integers, use the short-hand notation without child-elements but only a single integer.

<rate type="rate">25</rate>
Attribute Description Data Type Allowed Values Attribute is...
type The data type of the element. character data rate Implied
version Version of the xml element. unsigned integer 4 Implied
Children
Mandatory
(numerator, denominator) | #cdata
Note: #cdata must be an unsigned integer.
Parent
<duration>, <startTimecode>