title: addroi
media types:
Video
description: Add region of interest to frame.
version: Lavfi9.12.100
creator: libavfilter maintainers
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.
description:
Region distance from left edge of frame.
type: string
readonly: no
required: no
default: ‘0’
description:
Region distance from top edge of frame.
type: string
readonly: no
required: no
default: ‘0’
description:
Region width.
type: string
readonly: no
required: no
default: ‘0’
description:
Region height.
type: string
readonly: no
required: no
default: ‘0’
description:
Quantisation offset to apply in the region.
type: string
readonly: no
required: no
format: numerator/denominator
description:
Remove any existing regions of interest before adding the new one.
type: string
readonly: no
required: no
description:
The MLT position value to set on avfilter frames
type: string
readonly: no
required: no
default: frame
values:
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