那你只有用avs里面的addboarders了........
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 using different color formats.
The color parameter is optional (added in v2.07), default=0 , and is specified as an RGB value regardless of whether the clip format is RGB or YUV based.
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)
试试用AddBorders(16,16,16,16)
里面最好是16的倍数..........
