{ value: number; unit: 'percent' } places the cue as a percentage of the viewport.
{ value: number; unit: 'line' } places the cue by counting rendered text-line slots.
When omitted, the underlying subtitle renderer determines line placement automatically.
The
linefield of a SubtitleCueLayout.{ value: number; unit: 'percent' }places the cue as a percentage of the viewport.{ value: number; unit: 'line' }places the cue by counting rendered text-line slots. When omitted, the underlying subtitle renderer determines line placement automatically.