- /* Then we need a corrective translation, consisting of two parts:
- *
- * 1. that which is the result of the scaling of the subtitle by _video_container_size; this will be
- * rect.x * _video_container_size.width and rect.y * _video_container_size.height.
- *
- * 2. that to shift the origin of the scale by subtitle_scale to the centre of the subtitle; this will be
- * (width_before_subtitle_scale * (1 - subtitle_x_scale) / 2) and
- * (height_before_subtitle_scale * (1 - subtitle_y_scale) / 2).
- *
- * Combining these two translations gives these expressions.
- */
-