The location of the ancillary data packet in a SDI raster relative
to the start of active video (max 12bits). A value of 0 means the ADF of
the ancillary packet starts immediately following SAV. There are 3
special values: 0xfff: No specified location (default), 0xffe: within
HANC data space, 0xffd: within the ancillary data space located between
SAV and EAV
The location of the ancillary data packet in a SDI raster relative to the start of active video (max 12bits). A value of 0 means the ADF of the ancillary packet starts immediately following SAV. There are 3 special values: 0xfff: No specified location (default), 0xffe: within HANC data space, 0xffd: within the ancillary data space located between SAV and EAV