smpte2038DataPreference

Specifies whether to extract applicable ancillary data from a SMPTE-2038 source in this input. Applicable data types are captions, timecode, AFD, and SCTE-104 messages. - PREFER: Extract from SMPTE-2038 if present in this input, otherwise extract from another source (if any). - IGNORE: Never extract any ancillary data from SMPTE-2038.