==== green_extension_descriptor>

Defined by MPEG in <<ISO-13818-1>>.

[source,xml]
----
<green_extension_descriptor>

  <!-- One per time interval -->
  <constant_backlight_voltage_time_interval value="uint16, required"/>

  <!-- One per variation -->
  <max_variation value="uint16, required"/>

</green_extension_descriptor>
----
