Filter: avfilter.crop

Plugin Information

title: crop
media types: Video
description: Crop the input video.
version: Lavfi9.12.100
creator: libavfilter maintainers

Notes

Many parameters support animated values (keyframes) but only the numeric ones. Many numeric properties have type string because they accept an expression (see FFmpeg documentation) even though they evaluate to a numeric value.

Parameters

av.out_w

description: set the width crop area expression
type: string
readonly: no
required: no
default: ‘iw’

av.w

description: set the width crop area expression
type: string
readonly: no
required: no
default: ‘iw’

av.out_h

description: set the height crop area expression
type: string
readonly: no
required: no
default: ‘ih’

av.h

description: set the height crop area expression
type: string
readonly: no
required: no
default: ‘ih’

av.x

description: set the x crop area expression
type: string
readonly: no
required: no
default: ‘(in_w-out_w)/2’

av.y

description: set the y crop area expression
type: string
readonly: no
required: no
default: ‘(in_h-out_h)/2’

av.keep_aspect

description: keep aspect ratio
type: string
readonly: no
required: no

av.exact

description: do exact cropping
type: string
readonly: no
required: no

position

description: The MLT position value to set on avfilter frames
type: string
readonly: no
required: no
default: frame
values:

  • frame
  • filter
  • source
  • producer

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