title: Overlay
media types:
Video
description: Overlay text or images onto the video
version: 2
creator: Charles Yates
copyright: Meltytech, LLC
license: LGPLv2.1
The watermark filter combines a frame producer and a transition to overlay the specified text or image onto the video. Supplying a filename with extension ".txt" causes the loader to load a pango producer. Supplying a file name with an extension supported by gtk-pixbuf causes the loader to load a pixbuf producer. See the pango and pixbuf producers for details. Note: If the filename begins with "+" the pango producer interprets the filename as pango text. Text Example: melt colour:red -filter watermark:"+First Line~Second Line.txt" composite.progressive=1 producer.align=centre composite.valign=c composite.halign=c Image Example: melt clip.dv -filter watermark:logo.png
title: File/URL
description:
The file to overlay.
type: string
readonly: no
required: no
widget: fileopen
title: Composite Service
description:
The name of the MLT transition service to use for compositing.
type: string
readonly: no
required: yes
default: affine
title: Allow distorted scaling
type: integer
readonly: no
required: no
minimum: 0
maximum: 1
default: 0
widget: checkbox
title: Producer
description:
Properties may be set on the encapsulated producer.
e.g.: producer.align=centre
See "pango" and "pixbuf" producers for details.
type:
readonly: no
required: no
title: Composite Service Property
description:
Properties may be set on the encapsulated transition.
e.g.: composite.valign=c
See "composite" transition for details.
type:
readonly: no
required: no
title: Reverse
description:
Overlay the video to which the filter is applied atop the supplied file.
type: integer
readonly: no
required: no
minimum: 0
maximum: 1
widget: checkbox
description:
{"minimum"=>0, "maximum"=>1, "mutable"=>true, "widget"=>"checkbox"}
type: integer
readonly: no
required: no
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