# AddBorders

`AddBorders` (clip, int left, int top, int right, int bottom, int “color”)

`AddBorders` adds black borders around the image, with the specified widths (in pixels).

See colorspace conversion filters for constraints when using the different color formats.

The color parameter is optional (added in v2.07), default=0 <black>, and is specified as an RGB value regardless of whether the clip format is RGB or YUV based. Color presets can be found in the file colors_rgb.avsi, which should be present in your plugin folder. See here for more information on specifying colors.

Be aware that many lossy compression algorithms don’t deal well with solid- color borders, unless the border width happens to be a multiple of the block size (16 pixels for MPEG).

You can use this filter in combination with Crop to shift an image around without changing the frame size. For example:

    # Shift a 352x240 image 2 pixels to the right
    Crop(0,0,350,240).AddBorders(2,0,0,0)

    # Add letterbox borders that are Black making a 720x308 image 720x480
    # For YUV colorspace it will be correct (for CCIR-601) color (luma=16)
    AddBorders(0, 86, 0, 86, $000000)

$Date: 2008/06/06 11:37:04 $