No such filter: 'boxblur'

[Mathxr]

I am trying to blur the entire video, I came across the
following.

however it doesn't work, I get Conversion failed.

No such filter: 'boxblur'
Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument

I did some research and came across this, so how can I use 'boxblur'.

If it can't, there is another way to blur the video.

[ShwetaChauhan18]

@Mathxr : Will check and let you know

[milapchokshi-simformsolutions]

@Mathxr you will need a licensed Ffmpeg to use boxBlue effect and pixelate effect.
you may try with semi white transparent image overlay with exact size(Height, Width) of video but that might not be accurate.