title: backgroundkey
media types:
Video
description: Turns a static background into transparency.
version: Lavfi10.4.100
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:
set the scene change threshold
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0.08
description:
set the similarity
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0.1
description:
set the blend value
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0
description:
Maximum number of threads
type: integer
readonly: no
required: no
minimum: 0
default: 0
description:
The MLT position value to set on avfilter frames
type: string
readonly: no
required: no
default: frame
values:
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