Link: color_transform

Plugin Information

title: Colorspace & Transfer Characteristics
media types: Video Hidden
description: Convert the image color to whatever was requested by the consumer. This filter is designed for use as a normalizer for the loader producer. If the "force_trc" property is set on this filter, the filter will force the output trc to be "force_trc"; Otherwise, if a property "consumer.mlt_color_trc" exists on the frame, then it normalizes the image to the trc requested by the consumer.
version: 1
creator:
copyright: Meltytech, LLC
license: LGPLv2.1

Parameters

method

title: Method
description:

The underlying conversion method to use. The method is based on the
encapsulated filter that is used. 'auto' will choose the best available
in this order:
  * avfilter.zscale
  * sws_colortransform
  * avfilter.scale
  One can set the environment variable MLT_COLOR_TRANSFORM to override this.

type: string
readonly: no
required: no
default: auto
values:

  • auto
  • avfilter.zscale
  • sws_colortransform
  • avfilter.scale

force_trc

title: Force TRC
description:

Force the TRC to be as specified by this parameter instead of consumer.mlt_color_trc
This property can be used to "undo" a TRC set by this filter when used as a normalizer

type: string
readonly: no
required: no
default: unset

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MLT enables you to author, manage, and run multitrack audio/video compositions. Copyright © 2008-2026 by Meltytech, LLC.

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