# BorderControl

## Abstract

author: Simon Walters
version: 1.4
download: http://www.geocities.com/siwalters_uk/fnews.html
category: Broadcast Video Plugins
requirements: YV12 & YUY2 Colorspace

### Description

Note:The left and right parameters get doubled by the filter as I haven't sorted out how to deal properly with having 1 chroma sample for very 2 luminace ones yet :-(

It performs the same functions as the VirtualDub version in that you can set a black border, set a border region to be faded out and you can "smear" the border to save having to crop and resize the whole frame for the sake of a few pixels. Each border (top,bottom.left and right) can be manipulated independantly.

### Syntax

    #Example
    LoadPlugin("BorderControl")
    AVISource("Test.avi")
    BorderControl(YBB=16, YTS=32)

This would put a solid black border at the bottom and smear some lines at the top of the picture. The plugins accepts up to 16 parameters, 4 for each border
There are 4 prefixes: YB, YT, XL and XR for bottom, top, left and right borders.

There are 4 suffixes: B for Border - this sets the amount of solid border, F for Fade, S for Smear and SF for SmearFactor.

Increasing SmearFactor (having first set the Smear value correctly) can help disguise the smear region at the expense of increasing the area being processed. I suggest using even values for YTSF and YBSF when dealing with interlaced material.

So the parameters are
`BorderControl` (clip, "YBB", "YBF", "YBS", "YBSF", "YTB", "YTF", "YTS", "YTSF", "XLB", "XLF", "XLS", "XLSF", "XRB", "XRF", "XRS", "XRSF")

`$Date: 2004/08/13 21:57:25 $`