@prefix amb:  <http://ambisonics.ch/standards/channels/> .
@prefix doap: <http://usefulinc.com/ns/doap#> .
@prefix lv2:  <http://lv2plug.in/ns/lv2core#> .
@prefix owl:  <http://www.w3.org/2002/07/owl#> .
@prefix pg:   <http://lv2plug.in/ns/ext/port-groups#> .
@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

<http://lv2plug.in/ns/ext/port-groups>
	a lv2:Specification ;
	rdfs:seeAlso <../../meta/meta.ttl> ;
	doap:license <http://opensource.org/licenses/isc> ;
	doap:name "LV2 Port Groups" ;
	doap:shortdesc "Multi-channel groups of LV2 ports." ;
	doap:created "2008-00-00" ;
	doap:developer <http://lv2plug.in/ns/meta#larsl> ,
		<http://drobilla.net/drobilla#me> ;
	rdfs:comment "Defines semantic groupings of LV2 ports" .

pg:Group
	a rdfs:Class ;
	rdfs:label "A group of channels or parameters." ;
	rdfs:subClassOf [
		a owl:Restriction ;
		owl:onProperty lv2:symbol ;
		owl:cardinality 1 ;
		rdfs:comment """
A pg:Group MUST have exactly one string lv2:symbol.  This symbol must be
unique according to the same rules as the lv2:symbol for an lv2:Port, where
group symbols and port symbols reside in the same namespace.  In other words,
a group on a plugin MUST NOT have the same symbol as another group or a port
on that plugin.  This makes it possible to uniquely reference a port or group
on a plugin with a single identifier and no context.
"""
	] ;
	rdfs:comment """
A grouping of ports (or any other means of signal transmission) that should
logically be considered a single "stream", e.g. two audio ports in a group may
form a stereo stream.  In order to avoid the need to define large numbers of
identical group definitions, a group definition may be shared.  For example, a
plugin collection may define a single URI for a pg:StereoGroup with the symbol
"input" and use it in many plugins.
""" .

pg:InputGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:Group ;
	rdfs:label "Input Group" ;
	rdfs:comment "A group which contains exclusively inputs." .

pg:OutputGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:Group ;
	rdfs:label "Output Group" ;
	rdfs:comment "A group which contains exclusively outputs." .

pg:Element
	a rdfs:Class ;
	rdfs:label "Element" ;
	rdfs:comment "An ordered element of a group." ;
	rdfs:subClassOf [
		a owl:Restriction ;
		owl:onProperty lv2:index ;
		owl:maxCardinality 1 ;
		rdfs:comment "An element has at most one lv2:index."
	] , [
		a owl:Restriction ;
		owl:onProperty lv2:designation ;
		owl:cardinality 1 ;
		rdfs:comment "An element MUST have exactly one lv2:designation."
	] ;
	rdfs:comment """
An element of a group, which has a designation and an optional index.
""" .

pg:element
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:range pg:Element ;
	rdfs:label "element" ;
	rdfs:comment """
Indicates that a group has a certain element (a parameter or channel
designation with a possible index).
""" .

pg:sideChainOf
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:label "Side-chain of" ;
	rdfs:comment """
Indicates that this port or group should be considered a "side chain" of
some other port or group.  The precise definition of "side chain" depends
on the plugin, but in general this group should be considered a modifier to
some other group, rather than an independent input itself.
""" .

pg:subGroupOf
	a rdf:Property ,
		owl:ObjectProperty ,
		owl:FunctionalProperty ;
	rdfs:domain pg:Group ;
	rdfs:range pg:Group ;
	rdfs:label "Sub-group of" ;
	rdfs:comment """
Indicates that this group is a child of another group.  This property has no
meaning with respect to plugin execution, but the host may find this
information useful (e.g. to provide a compact user interface).  Note that being
a sub-group does not relax the restriction that the group MUST have a unique
symbol.
""" .

pg:source
	a rdf:Property ,
		owl:ObjectProperty ;
	rdfs:domain pg:OutputGroup ;
	rdfs:range pg:InputGroup ;
	rdfs:label "Source" ;
	rdfs:comment """
Indicates that this port or group should be considered the "result" of
some other port or group.  This property only makes sense on groups with
outputs when the source is a group with inputs.  This can be used to convey
a relationship between corresponding input and output groups with different
types, e.g. a mono->stereo plugin.
""" .

pg:mainInput
	a rdf:Property ,
		owl:ObjectProperty ,
		owl:FunctionalProperty ;
	rdfs:domain lv2:Plugin ;
	rdfs:range pg:InputGroup ;
	rdfs:label "Main input" ;
	rdfs:comment """
Indicates that this group should be considered the "main" input, i.e. the
primary task is processing the signal in this group.  A plugin MUST NOT have
more than one pg:mainInput property.
""" .

pg:mainOutput
	a rdf:Property ,
		owl:ObjectProperty ,
		owl:FunctionalProperty ;
	rdfs:domain lv2:Plugin ;
	rdfs:range pg:OutputGroup ;
	rdfs:label "Main output" ;
	rdfs:comment """
Indicates that this group should be considered the "main" output.  The main
output group SHOULD have the main input group as a pg:source.
""" .

pg:group
	a rdf:Property ,
		owl:ObjectProperty ,
		owl:FunctionalProperty ;
	rdfs:domain lv2:Port ;
	rdfs:range pg:Group ;
	rdfs:label "In port group" ;
	rdfs:comment """
Indicates that this port is a part of a group of ports on the plugin.  The port
should also have an lv2:designation property to define its designation within
that group.
""" .

pg:DiscreteGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:Group ;
	rdfs:comment """
"Discrete" channel configurations.  These groups are divided into channels
where each represents a particular speaker location.  The position of sound
in one of these groups depends on a particular speaker configuration.
""" .

pg:left
	a lv2:Channel ;
	rdfs:label "Left" .

pg:right
	a lv2:Channel ;
	rdfs:label "Right" .

pg:center
	a lv2:Channel ;
	rdfs:label "Center" .

pg:side
	a lv2:Channel ;
	rdfs:label "Side" .

pg:centerLeft
	a lv2:Channel ;
	rdfs:label "Center Left" .

pg:centerRight
	a lv2:Channel ;
	rdfs:label "Center Right" .

pg:sideLeft
	a lv2:Channel ;
	rdfs:label "Side Left" .

pg:sideRight
	a lv2:Channel ;
	rdfs:label "Side Right" .

pg:rearLeft
	a lv2:Channel ;
	rdfs:label "Rear Left" .

pg:rearRight
	a lv2:Channel ;
	rdfs:label "Rear Right" .

pg:rearCenter
	a lv2:Channel ;
	rdfs:label "Rear Center" .

pg:lowFrequencyEffects
	a lv2:Channel ;
	rdfs:label "Low-Frequency Effects (LFE)" .

pg:MonoGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "Mono" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:center
	] .

pg:StereoGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "Stereo" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:left
	] , [
		lv2:index 1 ;
		lv2:designation pg:right
	] .

pg:MidSideGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "Mid-Side Stereo" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:center
	] , [
		lv2:index 1 ;
		lv2:designation pg:side
	] .

pg:ThreePointZeroGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "3.0 Surround" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:left
	] , [
		lv2:index 1 ;
		lv2:designation pg:right
	] , [
		lv2:index 2 ;
		lv2:designation pg:rearCenter
	] .

pg:FourPointZeroGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "4.0 Surround (Quadraphonic)" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:left
	] , [
		lv2:index 1 ;
		lv2:designation pg:center
	] , [
		lv2:index 2 ;
		lv2:designation pg:right
	] , [
		lv2:index 3 ;
		lv2:designation pg:rearCenter
	] .

pg:FivePointZeroGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "5.0 Surround (3-2 stereo)" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:left
	] , [
		lv2:index 1 ;
		lv2:designation pg:center
	] , [
		lv2:index 2 ;
		lv2:designation pg:right
	] , [
		lv2:index 3 ;
		lv2:designation pg:rearLeft
	] , [
		lv2:index 4 ;
		lv2:designation pg:rearRight
	] .

pg:FivePointOneGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "5.1 Surround (3-2 stereo)" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:left
	] , [
		lv2:index 1 ;
		lv2:designation pg:center
	] , [
		lv2:index 2 ;
		lv2:designation pg:right
	] , [
		lv2:index 3 ;
		lv2:designation pg:rearLeft
	] , [
		lv2:index 4 ;
		lv2:designation pg:rearRight
	] , [
		lv2:index 5 ;
		lv2:designation pg:lowFrequencyEffects
	] .

pg:SixPointOneGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "6.1 Surround" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:left
	] , [
		lv2:index 1 ;
		lv2:designation pg:center
	] , [
		lv2:index 2 ;
		lv2:designation pg:right
	] , [
		lv2:index 3 ;
		lv2:designation pg:sideLeft
	] , [
		lv2:index 4 ;
		lv2:designation pg:sideRight
	] , [
		lv2:index 5 ;
		lv2:designation pg:rearCenter
	] , [
		lv2:index 6 ;
		lv2:designation pg:lowFrequencyEffects
	] .

pg:SevenPointOneGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "7.1 Surround" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:left
	] , [
		lv2:index 1 ;
		lv2:designation pg:center
	] , [
		lv2:index 2 ;
		lv2:designation pg:right
	] , [
		lv2:index 3 ;
		lv2:designation pg:sideLeft
	] , [
		lv2:index 4 ;
		lv2:designation pg:sideRight
	] , [
		lv2:index 5 ;
		lv2:designation pg:rearLeft
	] , [
		lv2:index 6 ;
		lv2:designation pg:rearRight
	] , [
		lv2:index 7 ;
		lv2:designation pg:lowFrequencyEffects
	] .

pg:SevenPointOneWideGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "7.1 Surround (Wide)" ;
	pg:element [
		lv2:index 0 ;
		lv2:designation pg:left
	] , [
		lv2:index 1 ;
		lv2:designation pg:centerLeft
	] , [
		lv2:index 2 ;
		lv2:designation pg:center
	] , [
		lv2:index 3 ;
		lv2:designation pg:centerRight
	] , [
		lv2:index 4 ;
		lv2:designation pg:right
	] , [
		lv2:index 5 ;
		lv2:designation pg:rearLeft
	] , [
		lv2:index 6 ;
		lv2:designation pg:rearRight
	] , [
		lv2:index 7 ;
		lv2:designation pg:lowFrequencyEffects
	] .

amb:ACN0
	a lv2:Channel .

amb:ACN1
	a lv2:Channel .

amb:ACN2
	a lv2:Channel .

amb:ACN3
	a lv2:Channel .

amb:ACN4
	a lv2:Channel .

amb:ACN5
	a lv2:Channel .

amb:ACN6
	a lv2:Channel .

amb:ACN7
	a lv2:Channel .

amb:ACN8
	a lv2:Channel .

amb:ACN9
	a lv2:Channel .

amb:ACN10
	a lv2:Channel .

amb:ACN11
	a lv2:Channel .

amb:ACN12
	a lv2:Channel .

amb:ACN13
	a lv2:Channel .

amb:ACN14
	a lv2:Channel .

amb:ACN15
	a lv2:Channel .

pg:AmbisonicGroup
	a rdfs:Class ;
	rdfs:subClassOf pg:Group ;
	rdfs:comment """
"Ambisonic" channel configurations.  These groups are divided into channels
which together represent a position in an abstract n-dimensional space.
The position of sound in one of these groups does not depend on a particular
speaker configuration; a decoder can be used to convert an ambisonic stream
for any speaker configuration.
""" .

pg:AmbisonicBH1P0Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 1 and peripheral order 0." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN3
	] .

pg:AmbisonicBH1P1Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 1 and peripheral order 1." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN2
	] , [
		lv2:index 3 ;
		lv2:designation amb:ACN3
	] .

pg:AmbisonicBH2P0Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 2 and peripheral order 0." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN3
	] , [
		lv2:index 3 ;
		lv2:designation amb:ACN4
	] , [
		lv2:index 4 ;
		lv2:designation amb:ACN8
	] .

pg:AmbisonicBH2P1Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 2 and peripheral order 1." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN2
	] , [
		lv2:index 3 ;
		lv2:designation amb:ACN3
	] , [
		lv2:index 4 ;
		lv2:designation amb:ACN4
	] , [
		lv2:index 5 ;
		lv2:designation amb:ACN8
	] .

pg:AmbisonicBH2P2Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 2 and peripheral order 2." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN2
	] , [
		lv2:index 3 ;
		lv2:designation amb:ACN3
	] , [
		lv2:index 4 ;
		lv2:designation amb:ACN4
	] , [
		lv2:index 5 ;
		lv2:designation amb:ACN5
	] , [
		lv2:index 6 ;
		lv2:designation amb:ACN6
	] , [
		lv2:index 7 ;
		lv2:designation amb:ACN7
	] , [
		lv2:index 8 ;
		lv2:designation amb:ACN8
	] .

pg:AmbisonicBH3P0Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 3 and peripheral order 0." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN3
	] , [
		lv2:index 3 ;
		lv2:designation amb:ACN4
	] , [
		lv2:index 4 ;
		lv2:designation amb:ACN8
	] , [
		lv2:index 5 ;
		lv2:designation amb:ACN9
	] , [
		lv2:index 6 ;
		lv2:designation amb:ACN15
	] .

pg:AmbisonicBH3P1Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 3 and peripheral order 1." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN2
	] , [
		lv2:index 3 ;
		lv2:designation amb:ACN3
	] , [
		lv2:index 4 ;
		lv2:designation amb:ACN4
	] , [
		lv2:index 5 ;
		lv2:designation amb:ACN8
	] , [
		lv2:index 6 ;
		lv2:designation amb:ACN9
	] , [
		lv2:index 7 ;
		lv2:designation amb:ACN15
	] .

pg:AmbisonicBH3P2Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 3 and peripheral order 2." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN2
	] , [
		lv2:index 3 ;
		lv2:designation amb:ACN3
	] , [
		lv2:index 4 ;
		lv2:designation amb:ACN4
	] , [
		lv2:index 5 ;
		lv2:designation amb:ACN5
	] , [
		lv2:index 6 ;
		lv2:designation amb:ACN6
	] , [
		lv2:index 7 ;
		lv2:designation amb:ACN7
	] , [
		lv2:index 8 ;
		lv2:designation amb:ACN8
	] , [
		lv2:index 9 ;
		lv2:designation amb:ACN9
	] , [
		lv2:index 10 ;
		lv2:designation amb:ACN15
	] .

pg:AmbisonicBH3P3Group
	a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 3 and peripheral order 3." ;
	pg:element [
		lv2:index 0 ;
		lv2:designation amb:ACN0
	] , [
		lv2:index 1 ;
		lv2:designation amb:ACN1
	] , [
		lv2:index 2 ;
		lv2:designation amb:ACN2
	] , [
		lv2:index 3 ;
		lv2:designation amb:ACN3
	] , [
		lv2:index 4 ;
		lv2:designation amb:ACN4
	] , [
		lv2:index 5 ;
		lv2:designation amb:ACN5
	] , [
		lv2:index 6 ;
		lv2:designation amb:ACN6
	] , [
		lv2:index 7 ;
		lv2:designation amb:ACN7
	] , [
		lv2:index 8 ;
		lv2:designation amb:ACN8
	] , [
		lv2:index 9 ;
		lv2:designation amb:ACN9
	] , [
		lv2:index 10 ;
		lv2:designation amb:ACN10
	] , [
		lv2:index 11 ;
		lv2:designation amb:ACN11
	] , [
		lv2:index 12 ;
		lv2:designation amb:ACN12
	] , [
		lv2:index 13 ;
		lv2:designation amb:ACN13
	] , [
		lv2:index 14 ;
		lv2:designation amb:ACN14
	] , [
		lv2:index 15 ;
		lv2:designation amb:ACN15
	] .