The line on which the ancillary data is located (max 11bit). There are two special values: 0x7ff if no line is specified (default), 0x7fe to specify the ancillary data is on any valid line before active video
The line on which the ancillary data is located (max 11bit). There are two special values: 0x7ff if no line is specified (default), 0x7fe to specify the ancillary data is on any valid line before active video