title: afade
media types:
Audio
description: Fade in/out input audio.
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 fade direction
type: string
readonly: no
required: no
format: integer or keyword
values:
description:
set the fade direction
type: string
readonly: no
required: no
format: integer or keyword
values:
description:
set number of first sample to start fading
type: integer
readonly: no
required: no
minimum: 0
default: 0
format: 64-bit
description:
set number of first sample to start fading
type: integer
readonly: no
required: no
minimum: 0
default: 0
format: 64-bit
description:
set number of samples for fade duration
type: integer
readonly: no
required: no
minimum: 1
default: 44100
format: 64-bit
description:
set number of samples for fade duration
type: integer
readonly: no
required: no
minimum: 1
default: 44100
format: 64-bit
description:
set time to start fading
type: string
readonly: no
required: no
description:
set time to start fading
type: string
readonly: no
required: no
description:
set fade duration
type: string
readonly: no
required: no
description:
set fade duration
type: string
readonly: no
required: no
description:
set fade curve type
type: string
readonly: no
required: no
format: integer or keyword
values:
description:
set fade curve type
type: string
readonly: no
required: no
format: integer or keyword
values:
description:
set the silence gain
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0
format: double
description:
set the unity gain
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 1
format: double
description:
The MLT position value to set on avfilter frames
type: string
readonly: no
required: no
default: frame
values:
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