Values.TeletextSourceSettingsSourceTeletext Source Settings
type nonrec t = {outputRectangle : CaptionRectangle.t option;Optionally defines a region where TTML style captions will be displayed
*)pageNumber : string option;Specifies the teletext page number within the data stream from which to extract captions. Range of 0x100 (256) to 0x8FF (2303). Unused for passthrough. Should be specified as a hexadecimal string with no "0x" prefix.
*)}