How do you blur selected frames in AVIsynth?

[Nagashi]

Let's say I wanted to blur selected frames to hide personal information, how would I go about doing this with AVIsynth?

[jagabo]

You mean, how to you limit the blurring to a range of frames? A portion of the frame (and is the portion you want to blur still or moving)? Or both?

[Nagashi]

I just want to limit the blurring to a range of moving frames.

[jagabo]

See ApplyRange() and Animate().

WhateverSource()
ApplyRange(1000, 2000, "blur", 1.0)

That will blur frames 1000 to 2000. You'll probably need a much stronger blur than that but it shows you how to use ApplyRange().

[Nagashi]

Your sir are a life saver. Thx.