VideoDuration sets the optional parameter "videoDuration": The videoDuration parameter filters video search results based on their duration. If you specify a value for this parameter, you must also set the type parameter's value to video.
"any" - Do not filter video search results based on their duration.
This is the default value.
"long" - Only include videos longer than 20 minutes. "medium" - Only include videos that are between four and 20 minutes
"short" - Only include videos that are less than four minutes long.