@prefix doap: <http://usefulinc.com/ns/doap#> .
@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://lv2plug.in/ns/lv2core>
	a owl:Ontology ;
	rdfs:label "LV2" ;
	rdfs:comment "An extensible open standard for audio plugins." ;
	rdfs:seeAlso <lv2core.meta.ttl> ;
	owl:imports doap: .

lv2:Specification
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf doap:Project ;
	rdfs:label "Specification" ;
	rdfs:comment "An LV2 specification." .

lv2:Markdown
	a rdfs:Datatype ;
	owl:onDatatype xsd:string ;
	rdfs:label "Markdown" ;
	rdfs:comment "A string in Markdown syntax." .

lv2:documentation
	a rdf:Property ,
		owl:AnnotationProperty ;
	rdfs:range rdfs:Literal ;
	rdfs:label "documentation" ;
	rdfs:comment "Extended documentation." ;
	rdfs:seeAlso <http://www.w3.org/TR/xhtml-basic/> .

lv2:PluginBase
	a rdfs:Class ,
		owl:Class ;
	rdfs:label "Plugin Base" ;
	rdfs:comment "Base class for a plugin-like resource." .

lv2:Plugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:PluginBase ;
	rdfs:label "Plugin" ;
	rdfs:comment "An LV2 plugin." ;
	rdfs:subClassOf [
		a owl:Restriction ;
		owl:onProperty doap:name ;
		owl:someValuesFrom rdf:PlainLiteral ;
		rdfs:comment "A plugin MUST have at least one untranslated doap:name."
	] , [
		a owl:Restriction ;
		owl:onProperty lv2:port ;
		owl:allValuesFrom lv2:Port ;
		rdfs:comment "All ports on a plugin MUST be fully specified lv2:Port instances."
	] .

lv2:PortBase
	a rdfs:Class ,
		owl:Class ;
	rdfs:label "Port Base" ;
	rdfs:comment "Base class for a port-like resource." ;
	rdfs:subClassOf [
		a owl:Restriction ;
		owl:onProperty lv2:symbol ;
		owl:cardinality 1 ;
		rdfs:comment "A port MUST have exactly one lv2:symbol."
	] .

lv2:Port
	a rdfs:Class ,
		owl:Class ;
	rdfs:label "Port" ;
	rdfs:comment "An LV2 plugin port." ;
	rdfs:subClassOf lv2:PortBase ,
	[
		a owl:Restriction ;
		owl:onProperty lv2:name ;
		owl:minCardinality 1 ;
		rdfs:comment "A port MUST have at least one lv2:name."
	] .

lv2:InputPort
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Port ;
	rdfs:label "Input Port" ;
	rdfs:comment "A port connected to constant data which is read during `run()`." .

lv2:OutputPort
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Port ;
	rdfs:label "Output Port" ;
	rdfs:comment "A port connected to data which is written during `run()`." .

lv2:ControlPort
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Port ;
	rdfs:label "Control Port" ;
	rdfs:comment "A port connected to a single `float`." .

lv2:AudioPort
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Port ;
	rdfs:label "Audio Port" ;
	rdfs:comment "A port connected to an array of float audio samples." .

lv2:CVPort
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Port ;
	rdfs:label "CV Port" ;
	rdfs:comment "A port connected to an array of float control values." .

lv2:port
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:domain lv2:PluginBase ;
	rdfs:range lv2:PortBase ;
	rdfs:label "port" ;
	rdfs:comment "A port (input or output) on this plugin." .

lv2:project
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:range doap:Project ;
	rdfs:label "project" ;
	rdfs:comment "The project this is a part of." .

lv2:prototype
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:label "prototype" ;
	rdfs:comment "The prototype to inherit properties from." .

lv2:minorVersion
	a rdf:Property ,
		owl:DatatypeProperty ;
	rdfs:range xsd:nonNegativeInteger ;
	rdfs:label "minor version" ;
	rdfs:comment "The minor version of this resource." .

lv2:microVersion
	a rdf:Property ,
		owl:DatatypeProperty ;
	rdfs:range xsd:nonNegativeInteger ;
	rdfs:label "micro version" ;
	rdfs:comment "The micro version of this resource." .

lv2:binary
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:range owl:Thing ;
	rdfs:label "binary" ;
	rdfs:comment "The binary of this resource." .

lv2:appliesTo
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:range lv2:Plugin ;
	rdfs:label "applies to" ;
	rdfs:comment "The plugin this resource is related to." .

lv2:index
	a rdf:Property ,
		owl:DatatypeProperty ,
		owl:FunctionalProperty ;
	rdfs:range xsd:unsignedInt ;
	rdfs:label "index" ;
	rdfs:comment "A non-negative zero-based 32-bit index." .

lv2:Symbol
	a rdfs:Datatype ;
	owl:onDatatype xsd:string ;
	owl:withRestrictions (
		[
			xsd:pattern "[_a-zA-Z][_a-zA-Z0-9]*"
		]
	) ;
	rdfs:label "Symbol" ;
	rdfs:comment "A short restricted name used as a strong identifier." .

lv2:symbol
	a rdf:Property ,
		owl:DatatypeProperty ,
		owl:FunctionalProperty ;
	rdfs:label "symbol" ;
	rdfs:range lv2:Symbol ,
		rdf:PlainLiteral ;
	rdfs:comment "The symbol that identifies this resource in the context of its parent." .

lv2:name
	a rdf:Property ,
		owl:DatatypeProperty ;
	rdfs:label "name" ;
	rdfs:range xsd:string ;
	rdfs:comment "A display name for labeling in a user interface." .

lv2:shortName
	a rdf:Property ,
		owl:DatatypeProperty ;
	rdfs:label "short name" ;
	rdfs:range xsd:string ;
	rdfs:comment "A short display name for labeling in a user interface." .

lv2:Designation
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf rdf:Property ;
	rdfs:label "Designation" ;
	rdfs:comment "A designation which defines the meaning of some data." .

lv2:Channel
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Designation ;
	rdfs:label "Channel" ;
	rdfs:comment "An individual channel, such as left or right." .

lv2:Parameter
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Designation ,
		rdf:Property ;
	rdfs:label "Parameter" ;
	rdfs:comment "A property that is a plugin parameter." .

lv2:designation
	a rdf:Property ,
		owl:ObjectProperty ,
		owl:FunctionalProperty ;
	rdfs:range rdf:Property ;
	rdfs:label "designation" ;
	rdfs:comment "The designation that defines the meaning of this input or output." .

lv2:latency
	a rdf:Property ,
		owl:DatatypeProperty ;
	rdfs:range xsd:nonNegativeInteger ;
	rdfs:label "latency" ;
	rdfs:comment "The latency introduced, in frames." .

lv2:freeWheeling
	a rdf:Property ,
		owl:DatatypeProperty ;
	rdfs:label "free-wheeling" ;
	rdfs:range xsd:boolean ;
	rdfs:comment "Whether processing is currently free-wheeling." .

lv2:enabled
	a rdf:Property ,
		owl:DatatypeProperty ;
	rdfs:label "enabled" ;
	rdfs:range xsd:int ;
	rdfs:comment "Whether processing is currently enabled (not bypassed)." .

lv2:control
	a lv2:Channel ;
	rdfs:label "control" ;
	rdfs:comment "The primary control channel." .

lv2:Point
	a rdfs:Class ,
		owl:Class ;
	rdfs:label "Point" ;
	rdfs:comment "An interesting point in a value range." .

lv2:ScalePoint
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Point ;
	rdfs:label "Scale Point" ;
	rdfs:comment "A single `float` Point for control inputs." .

lv2:scalePoint
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:range lv2:ScalePoint ;
	rdfs:label "scale point" ;
	rdfs:comment "A scale point of a port or parameter." .

lv2:default
	a rdf:Property ,
		owl:DatatypeProperty ,
		owl:FunctionalProperty ;
	rdfs:label "default" ;
	rdfs:comment "The default value for this control." .

lv2:minimum
	a rdf:Property ,
		owl:DatatypeProperty ,
		owl:FunctionalProperty ;
	rdfs:label "minimum" ;
	rdfs:comment "The minimum value for this control." .

lv2:maximum
	a rdf:Property ,
		owl:DatatypeProperty ,
		owl:FunctionalProperty ;
	rdfs:label "maximum" ;
	rdfs:comment "The maximum value for this control." .

lv2:Feature
	a rdfs:Class ,
		owl:Class ;
	rdfs:label "Feature" ;
	rdfs:comment "An additional feature which may be used or required." .

lv2:optionalFeature
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:range lv2:Feature ;
	rdfs:label "optional feature" ;
	rdfs:comment "An optional feature that is supported if available." .

lv2:requiredFeature
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:range lv2:Feature ;
	rdfs:label "required feature" ;
	rdfs:comment "A required feature that must be available to run." .

lv2:ExtensionData
	a rdfs:Class ,
		owl:Class ;
	rdfs:label "Extension Data" ;
	rdfs:comment "Additional data defined by an extension." .

lv2:extensionData
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:range lv2:ExtensionData ;
	rdfs:label "extension data" ;
	rdfs:comment "Extension data provided by a plugin or other binary." .

lv2:isLive
	a lv2:Feature ;
	rdfs:label "is live" ;
	rdfs:comment "Plugin has a real-time dependency." .

lv2:inPlaceBroken
	a lv2:Feature ;
	rdfs:label "in-place broken" ;
	rdfs:comment "Plugin requires separate locations for input and output." .

lv2:hardRTCapable
	a lv2:Feature ;
	rdfs:label "hard real-time capable" ;
	rdfs:comment "Plugin is capable of running in a hard real-time environment." .

lv2:PortProperty
	a rdfs:Class ,
		owl:Class ;
	rdfs:label "Port Property" ;
	rdfs:comment "A particular property that a port has." .

lv2:portProperty
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:domain lv2:Port ;
	rdfs:range lv2:PortProperty ;
	rdfs:label "port property" ;
	rdfs:comment "A property of this port hosts may find useful." .

lv2:connectionOptional
	a lv2:PortProperty ;
	rdfs:label "connection optional" ;
	rdfs:comment "The property that this port may be connected to NULL." .

lv2:reportsLatency
	a lv2:PortProperty ;
	owl:deprecated true ;
	rdfs:label "reports latency" ;
	rdfs:comment "Control port value is the plugin latency in frames." .

lv2:toggled
	a lv2:PortProperty ;
	rdfs:label "toggled" ;
	rdfs:comment "Control port value is considered a boolean toggle." .

lv2:sampleRate
	a lv2:PortProperty ;
	rdfs:label "sample rate" ;
	rdfs:comment "Control port bounds are interpreted as multiples of the sample rate." .

lv2:integer
	a lv2:PortProperty ;
	rdfs:label "integer" ;
	rdfs:comment "Control port values are treated as integers." .

lv2:enumeration
	a lv2:PortProperty ;
	rdfs:label "enumeration" ;
	rdfs:comment "Control port scale points represent all useful values." .

lv2:isSideChain
	a lv2:PortProperty ;
	rdfs:label "is side-chain" ;
	rdfs:comment "Signal for port should not be considered a main input or output." .

lv2:GeneratorPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Generator Plugin" ;
	rdfs:comment "A plugin that generates new sound internally." .

lv2:InstrumentPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:GeneratorPlugin ;
	rdfs:label "Instrument Plugin" ;
	rdfs:comment "A plugin intended to be played as a musical instrument." .

lv2:OscillatorPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:GeneratorPlugin ;
	rdfs:label "Oscillator Plugin" ;
	rdfs:comment "A plugin that generates output with an oscillator." .

lv2:UtilityPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Utility Plugin" ;
	rdfs:comment "A utility plugin that is not a typical audio effect or generator." .

lv2:ConverterPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:UtilityPlugin ;
	rdfs:label "Converter Plugin" ;
	rdfs:comment "A plugin that converts its input into a different form." .

lv2:AnalyserPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:UtilityPlugin ;
	rdfs:label "Analyser Plugin" ;
	rdfs:comment "A plugin that analyses its input and emits some useful information." .

lv2:MixerPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:UtilityPlugin ;
	rdfs:label "Mixer Plugin" ;
	rdfs:comment "A plugin that mixes some number of inputs into some number of outputs." .

lv2:SimulatorPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Simulator Plugin" ;
	rdfs:comment "A plugin that aims to emulate some environmental effect or musical equipment." .

lv2:DelayPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Delay Plugin" ;
	rdfs:comment "An effect that intentionally delays its input as an effect." .

lv2:ModulatorPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Modulator Plugin" ;
	rdfs:comment "An effect that modulats its input as an effect." .

lv2:ReverbPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ,
		lv2:SimulatorPlugin ,
		lv2:DelayPlugin ;
	rdfs:label "Reverb Plugin" ;
	rdfs:comment "An effect that adds reverberation to its input." .

lv2:PhaserPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:ModulatorPlugin ;
	rdfs:label "Phaser Plugin" ;
	rdfs:comment "An effect that periodically sweeps a filter over its input." .

lv2:FlangerPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:ModulatorPlugin ;
	rdfs:label "Flanger Plugin" ;
	rdfs:comment "An effect that mixes slightly delayed copies of its input." .

lv2:ChorusPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:ModulatorPlugin ;
	rdfs:label "Chorus Plugin" ;
	rdfs:comment "An effect that mixes significantly delayed copies of its input." .

lv2:FilterPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Filter Plugin" ;
	rdfs:comment "An effect that manipulates the frequency spectrum of its input." .

lv2:LowpassPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:FilterPlugin ;
	rdfs:label "Lowpass Filter Plugin" ;
	rdfs:comment "A filter that attenuates frequencies above some cutoff." .

lv2:BandpassPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:FilterPlugin ;
	rdfs:label "Bandpass Filter Plugin" ;
	rdfs:comment "A filter that attenuates frequencies outside of some band." .

lv2:BandstopPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:FilterPlugin ;
	rdfs:label "Bandstop Filter Plugin" ;
	rdfs:comment "A filter that attenuates frequencies inside of some band." .

lv2:HighpassPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:FilterPlugin ;
	rdfs:label "Highpass Filter Plugin" ;
	rdfs:comment "A filter that attenuates frequencies below some cutoff." .

lv2:CombPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:FilterPlugin ;
	rdfs:label "Comb Filter Plugin" ;
	rdfs:comment "A filter that adds a delayed version of its input to itself." .

lv2:AllpassPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:FilterPlugin ;
	rdfs:label "Allpass Filter Plugin" ;
	rdfs:comment "A filter that changes the phase relationship between frequency components." .

lv2:EQPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:FilterPlugin ;
	rdfs:label "EQ Plugin" ;
	rdfs:comment "A plugin that adjusts the balance between frequency components." .

lv2:ParaEQPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:EQPlugin ;
	rdfs:label "Parametric EQ Plugin" ;
	rdfs:comment "A plugin that adjusts the balance between configurable frequency components." .

lv2:MultiEQPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:EQPlugin ;
	rdfs:label "Multiband EQ Plugin" ;
	rdfs:comment "A plugin that adjusts the balance between a fixed set of frequency components." .

lv2:SpatialPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Spatial Plugin" ;
	rdfs:comment "A plugin that manipulates the position of audio in space." .

lv2:SpectralPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Spectral Plugin" ;
	rdfs:comment "A plugin that alters the spectral properties of audio." .

lv2:PitchPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:SpectralPlugin ;
	rdfs:label "Pitch Shifter Plugin" ;
	rdfs:comment "A plugin that shifts the pitch of its input." .

lv2:AmplifierPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:DynamicsPlugin ;
	rdfs:label "Amplifier Plugin" ;
	rdfs:comment "A plugin that primarily changes the volume of its input." .

lv2:EnvelopePlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:DynamicsPlugin ;
	rdfs:label "Envelope Plugin" ;
	rdfs:comment "A plugin that applies an envelope to its input." .

lv2:DistortionPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Distortion Plugin" ;
	rdfs:comment "A plugin that adds distortion to its input." .

lv2:WaveshaperPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:DistortionPlugin ;
	rdfs:label "Waveshaper Plugin" ;
	rdfs:comment "An effect that alters the shape of input waveforms." .

lv2:DynamicsPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "Dynamics Plugin" ;
	rdfs:comment "A plugin that alters the envelope or dynamic range of its input." .

lv2:CompressorPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:DynamicsPlugin ;
	rdfs:label "Compressor Plugin" ;
	rdfs:comment "A plugin that reduces the dynamic range of its input." .

lv2:ExpanderPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:DynamicsPlugin ;
	rdfs:label "Expander Plugin" ;
	rdfs:comment "A plugin that expands the dynamic range of its input." .

lv2:LimiterPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:DynamicsPlugin ;
	rdfs:label "Limiter Plugin" ;
	rdfs:comment "A plugin that limits its input to some maximum level." .

lv2:GatePlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:DynamicsPlugin ;
	rdfs:label "Gate Plugin" ;
	rdfs:comment "A plugin that attenuates signals below some threshold." .

lv2:FunctionPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:UtilityPlugin ;
	rdfs:label "Function Plugin" ;
	rdfs:comment "A plugin whose output is a mathematical function of its input." .

lv2:ConstantPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:GeneratorPlugin ;
	rdfs:label "Constant Plugin" ;
	rdfs:comment "A plugin that emits constant values." .

lv2:MIDIPlugin
	a rdfs:Class ,
		owl:Class ;
	rdfs:subClassOf lv2:Plugin ;
	rdfs:label "MIDI Plugin" ;
	rdfs:comment "A plugin that primarily processes MIDI messages." .