Filter to modify the edges of a video frame.
1. Fill a fixed border with selected color
2. Smear a single line to the edge of the border, next line to smear region used
3. Stretch N lines to fill to the edge of border, N lines above smear region used
4. Fade video from selected line to edge of border
fade can be to black or to border color
5. Cross smear progressively softens the smeared lines to make smear less obvious
6. Range of values is suitable for HD videos
While...