/usr/share/mlt/core/filter_panner.yml is in libmlt-data 0.9.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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type: filter
identifier: panner
title: Audio Pan
version: 2
copyright: Ushodaya Enterprises Limited
creator: Dan Dennedy
license: LGPLv2.1
language: en
tags:
- Audio
description: Pan an audio channel, adjust balance, or adjust fade.
notes: Only handles up to 6 channels. Needs more work balance for surround and other channel layouts.
parameters:
- identifier: start
title: Start
description: >
The position of the audio relative to its neighbor channel. For example,
when channel is set to 0 for left, then start 0 is full left, 0.5 is
center, and 1.0 is full right.
If value for property "split" is set value of this property is discarded.
type: float
argument: true
mutable: yes
minimum: 0
maximum: 1
- identifier: end
title: End
description: >
The ending value of the audio position. It will be interpolated from
start to end over the in-out range.
If value for property "split" is set value of this property is discarded.
type: float
mutable: yes
minimum: 0
maximum: 1
- identifier: channel
title: Channel
type: integer
description: >
For stereo: 0 for front left, 1 for front right, -1 for front balance.
For quad: 2 for back left, 3 for back right, -2 for rear balance,
-3 for left fade, -4 for right fade.
minimum: -4
maximum: 5
default: -1
- identifier: gang
title: Gang
description: >
Whether to gang together the front and back when using balance or to
gang together the left and right when using fade.
type: integer
minimum: 0
maximum: 1
default: 0
widget: checkbox
- identifier: split
title: Split
description: >
The animated position of the audio relative to its neighbor channel. For example,
when channel is set to 0 for left, then start 0 is full left, 0.5 is
center, and 1.0 is full right.
If this value is set, values for properties "start" and "end" are discarded.
type: float
mutable: yes
minimum: 0
maximum: 1
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