@prefix bufs: <http://lv2plug.in/ns/ext/buf-size#> .
@prefix doap: <http://usefulinc.com/ns/doap#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
@prefix opts: <http://lv2plug.in/ns/ext/options#> .
@prefix params: <http://lv2plug.in/ns/ext/parameters#> .
@prefix props: <http://lv2plug.in/ns/ext/port-props#> .
@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#> .

<urn:nymph:examples:tiltfilter>
    a lv2:Plugin , lv2:FilterPlugin , doap:Project ;

    lv2:optionalFeature lv2:hardRTCapable , bufs:boundedBlockLength , opts:options ;

    opts:supportedOption bufs:nominalBlockLength ,
                         bufs:maxBlockLength ,
                         params:sampleRate ;

    lv2:port [
        a lv2:InputPort, lv2:AudioPort ;
        lv2:index 0 ;
        lv2:name "Audio In" ;
        lv2:symbol "in" ;
    ],
    [
        a lv2:OutputPort, lv2:AudioPort ;
        lv2:index 1 ;
        lv2:name "Audio Out" ;
        lv2:symbol "out" ;
    ],
    [
        a lv2:InputPort, lv2:ControlPort ;
        lv2:index 2 ;
        lv2:name "Cutoff" ;
        lv2:symbol "cutoff" ;
        lv2:default 10000.0 ;
        lv2:minimum 20.0 ;
        lv2:maximum 20000.0 ;
        units:unit units:hz ;
    ],
    [
        a lv2:InputPort, lv2:ControlPort ;
        lv2:index 3 ;
        lv2:name "Steepness" ;
        lv2:symbol "steepness" ;
        lv2:default 1.0 ;
        lv2:minimum 0.0 ;
        lv2:maximum 1.0 ;
    ],
    [
        a lv2:InputPort, lv2:ControlPort ;
        lv2:index 4 ;
        lv2:name "Filter mode" ;
        lv2:symbol "mode" ;
        lv2:default 0 ;
        lv2:minimum 0 ;
        lv2:maximum 2 ;
        lv2:portProperty lv2:enumeration, lv2:integer ;
        lv2:scalePoint [
            rdfs:label "Lowpass" ;
            rdf:value 0 ;
        ],
        [
            rdfs:label "Highpass" ;
            rdf:value 1 ;
        ],
        [
            rdfs:label "Bandpass" ;
            rdf:value 2;
        ] ;
    ];

    rdfs:comment """
A tilt EQ audio filter.
""" ;

    doap:name "nymph tilt filter" ;
    doap:license <https://spdx.org/licenses/MIT> ;

    doap:maintainer [
        foaf:name "Christopher Arndt" ;
        foaf:mbox <mailto:info@chrisarndt.de> ;
        foaf:homepage <https://gitlab.com/SpotlightKid/nymph> ;
    ] ;

    lv2:microVersion 0 ;
    lv2:minorVersion 1 .