Distance in pixels from the top edge of the frame to the top and
bottom edges and from the left edge of the frame to the left and
right edges of the rectangle defining this region of interest.
The constraints on a region are encoder dependent, so the region
actually affected may be slightly larger for alignment or other
reasons.
Distance in pixels from the top edge of the frame to the top and bottom edges and from the left edge of the frame to the left and right edges of the rectangle defining this region of interest.
The constraints on a region are encoder dependent, so the region actually affected may be slightly larger for alignment or other reasons.