This class represents the media offset dictionary. This is definitively detailed in:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 285, page 501.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 296, page 627.

A media offset dictionary specifies a position within a media clip, used to set the start and end boundaries of a media clip section. The S entry names the offset subtype, which determines how the position is expressed.

Offset subtypes are T for a time value in seconds, F for a frame number, and M for a named marker in the media file. The actual offset value is carried in a subtype-specific dictionary.

System.Object
    WebSupergoo.ABCpdf14.Elements.Element
       WebSupergoo.ABCpdf14.Elements.MediaOffsetElement
          WebSupergoo.ABCpdf14.Elements.MediaOffsetFrameElement
          WebSupergoo.ABCpdf14.Elements.MediaOffsetMarkerElement
          WebSupergoo.ABCpdf14.Elements.MediaOffsetTimeElement