plugin_def.ttl

# The full description of the plugin is in this file, which is linked to from
# `manifest.ttl`.  This is done so the host only needs to scan the relatively
# small `manifest.ttl` files to quickly discover all plugins.

@prefix doap:  <http://usefulinc.com/ns/doap#> .
@prefix lv2:   <http://lv2plug.in/ns/lv2core#> .
@prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix units: <http://lv2plug.in/ns/extensions/units#> .

# First the type of the plugin is described.  All plugins must explicitly list
# `lv2:Plugin` as a type.  A more specific type should also be given, where
# applicable, so hosts can present a nicer UI for loading plugins.  Note that
# this URI is the identifier of the plugin, so if it does not match the one in
# `manifest.ttl`, the host will not discover the plugin data at all.
<urn:upachler:ebur128-compressor>
        a lv2:Plugin ,
                lv2:EBUR128CompressorPlugin ;
# Plugins are associated with a project, where common information like
# developers, home page, and so on are described.  This plugin is part of the
# lv2rs-book project, which has URI <https://github.com/Janonard/lv2rs-book>, and is described
# elsewhere.  Typical plugin collections will describe the project in
# manifest.ttl
        lv2:project <https://github.com/Janonard/lv2rs-book> ;
# Every plugin must have a name, described with the doap:name property.
# Translations to various languages can be added by putting a language tag
# after strings as shown later.
        doap:name "EBU R128 Dynamic Range Compressor" ;
        doap:license <http://opensource.org/licenses/mit> ;
        lv2:optionalFeature lv2:hardRTCapable ;
        lv2:port [
# Every port must have at least two types, one that specifies direction
# (lv2:InputPort or lv2:OutputPort), and another to describe the data type.
# This port is a lv2:ControlPort, which means it contains a single float.
                a lv2:InputPort ,
                        lv2:ControlPort ;
                lv2:index 0 ;
                lv2:symbol "threshold" ;
                lv2:name "Threshold" ,
                        "Schwellwert"@de ,
                        "Threshold"@en-gb ;
# An lv2:ControlPort should always describe its default value, and usually a
# minimum and maximum value.  Defining a range is not strictly required, but
# should be done wherever possible to aid host support, particularly for UIs.
                lv2:default -5.0 ;
                lv2:minimum -20.0 ;
                lv2:maximum 0.0 ;
# Ports can describe units and control detents to allow better UI generation
# and host automation.
                units:unit [
                        a            units:Unit ;
                        rdfs:label   "LUFS" ;
                        units:symbol "LUFS" ;
                        units:render "%f LUFS"
                ] ;
                lv2:scalePoint [
                        rdfs:label "max" ;
                        rdf:value 0.0
                ] , [
                        rdfs:label "min" ;
                        rdf:value -20.0
                ]
        ] , [
                a lv2:AudioPort ,
                        lv2:InputPort ;
                lv2:index 1 ;
                lv2:symbol "in" ;
                lv2:name "In"
        ] , [
                a lv2:AudioPort ,
                        lv2:OutputPort ;
                lv2:index 2 ;
                lv2:symbol "out" ;
                lv2:name "Out"
        ] .