kCVImageBufferFieldDetailTemporalTopFirst
A key to the temporal top first detail field of the image buffer.
Declaration
let kCVImageBufferFieldDetailTemporalTopFirst: CFStringDiscussion
The temporal top first detail field value is of type CFString. The image buffer contains complete fields in alternating order. The top, odd-numbered, fields contain image data captured at an earlier time than bottom, even-numbered, fields.