View source for VLC HowTo/Crop

{{howto|Crop the video}}
== What is cropping? ==
Cropping refers to the removal of the outer parts of an image. So it remove something from left, right, top and/or bottom of image. Usually with videos cropping is used to change aspect ratio by cutting something out (known as Pan and scan method).  

== How to do it QT4 ==
From QT4 GUI you can enable cropping from '''Tools -> Preferences...''' (Show settings: All) then '''Video''' and '''Video cropping''' field.

or 

'''Tools''' -> '''Effects and Filters''' (Ctrl+E) then '''Video Effects''' -> '''Crop''', and set the values.

== How to do it from command-line/terminal/shell ==
If you want to crop local video with command-line/terminal parameters, use
 vlc input --vout-filter=crop --crop-geometry=120x120+10+10
120x120 is the wanted resolution (in pixels), and 10+10 is the top-left position where the cropping should start (in pixels)

or if you want certain aspect ratio
 vlc input --vout-filter=crop --crop-ratio=1777
where 1777 is aspect ratio you want (divide it with 1000 to get correct value, in this case 1,777 aka 16:9)

With VLC 2.0.0 and newer croppadd might work better
 vlc input --video-filter=croppadd --croppadd-croptop=100