Moved slv2 directory for consistency

git-svn-id: http://svn.drobilla.net/lad/slv2@165 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 607 insertions, 0 deletions

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+# RDF Schema for LV2 plugins
+# *** PROVISIONAL ***
+#
+# This document describes the classes and properties that are defined by the
+# core LV2 specification.  See <http://lv2plug.in> for more information.
+# 
+# Copyright (C) 2006 Steve Harris, Dave Robillard
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+@prefix :     <http://lv2plug.in/ontology#> .
+@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> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+
+<> doap:license <http://usefulinc.com/doap/licenses/mit> .
+
+<> doap:release [ doap:Version
+    [ doap:revision "0.9" ; doap:created "2006-07-24" ] ] .
+
+<> doap:maintainer [ foaf:Person
+    [ foaf:name    "Steve Harris" ;
+      rdfs:seeAlso "http://inanna.ecs.soton.ac.uk/swh.xrdf" ] ] .
+
+
+
+##################
+## Plugin Class ##
+##################
+
+:Plugin a rdfs:Class ;
+    rdfs:label   "Plugin" ;
+    rdfs:comment """
+The class that represents an LV2 plugin.
+
+To be used by a host a Plugin must have at least the following properties:
+    rdf:type (with object :Plugin)
+    doap:name (one without language tag)
+    doap:licence
+    :port
+""" .
+
+
+
+##################
+## Port Classes ##
+##################
+
+:Port a rdfs:Class ;
+    rdfs:label   "Port" ;
+    rdfs:comment """
+The class that represents an LV2 port
+
+In order for it to be used by a host it must have at least 
+the following properties:
+    rdf:type (where object is exactly one of
+       :ControlRateInputPort, :ControlRateOutputPort,
+       :AudioRateInputPort,   :AudioRateOutputPort)
+    :dataType
+    :index
+    :symbol
+    :name
+""" .
+
+:InputPort a rdfs:Class ;
+    rdfs:subClassOf :Port .
+
+:OutputPort a rdfs:Class ;
+    rdfs:subClassOf :Port .
+
+:ControlRatePort a rdfs:Class ;
+    rdfs:subClassOf :Port .
+
+:AudioRatePort a rdfs:Class ;
+    rdfs:subClassOf :Port .
+
+:ControlRateInputPort a rdfs:Class ;
+    rdfs:label      "Control-rate input port" ;
+    rdfs:subClassOf :ControlRatePort ;
+    rdfs:subClassOf :InputPort ;
+    rdfs:comment    """
+Ports of this type will be connected to a pointer to a single value of the type
+defined by the :dataType property.
+
+Plugins will read values from this pointer during their run method.
+""" .
+
+:ControlRateOutputPort a rdfs:Class ;
+    rdfs:label      "Control-rate output port" ;
+    rdfs:subClassOf :ControlRatePort ;
+    rdfs:subClassOf :OutputPort ;
+    rdfs:comment    """
+Ports of this type will be connected to a pointer to a single value of the type
+defined by the :dataType property.
+
+Plugins will write values to this pointer during their run method.
+""" .
+
+:AudioRateInputPort a rdfs:Class ;
+    rdfs:label      "Audio-rate input port" ;
+    rdfs:subClassOf :AudioRatePort ;
+    rdfs:subClassOf :InputPort ;
+    rdfs:comment    """
+Ports of this type will be connected to an array of values of length
+SampleCount and of the type defined by the :dataType property.
+
+Plugins will read values from this array during their run method.
+""" .
+
+:AudioRateOutputPort a rdfs:Class ;
+    rdfs:label      "Audio-rate output port" ;
+    rdfs:subClassOf :AudioRatePort ;
+    rdfs:subClassOf :OutputPort ;
+    rdfs:comment    """
+Ports of this type will be connected to an array of values of length
+SampleCount and of the type defined by the :dataType property.
+
+Plugins will write values to this array during their run method.
+""" .
+
+
+
+#################################
+# Mandatory Port RDF:Properties #
+#################################
+
+:DataType a rdfs:Class ;
+    rdfs:comment "A data type that can be stored in an LV2 port." .
+
+:dataType a rdf:Property ;
+    rdfs:domain  :Port ;
+    rdfs:range   :DataType ;
+    rdfs:label   "Port Data type" ;
+    rdfs:comment """
+Relates a Port to the data type(s) it can accept.  Hosts that do not support
+a specified datatype MUST NOT instantiate the plugin, unless that port has
+the connectionOptional hint set (in which case the host can simply "connect"
+that port to NULL).
+
+If multiple datatypes are specified the plugin must have some way to distinguish
+the values (any extension that defines a new data-type which wishes to allow
+this must deal with this issue somehow).
+""" .
+
+:index a rdf:Property ;
+    rdfs:domain  :Port ;
+    rdfs:range   xsd:nonNegativeInteger ;
+    rdfs:label   "index" ;
+    rdfs:comment """
+Specifies the index of the port, passed as an argument to the connect port
+function. This number uniqely identifies the port within the plugin.
+
+The plugin author MUST change the plugin URI if a port index is changed.
+""" .
+
+:symbol a rdf:Property ;
+    rdfs:domain  :Port ;
+    rdfs:label   "symbol" ;
+    rdfs:comment """
+A short name used to identify the port in an easily machine and human readable way.
+
+The first character must be one of _, a-z or A-Z and subsequenct characters can
+be from _, a-z, A-Z and 0-9.
+
+A language tag MUST NOT be used on this property.  The plugin author MUST change
+the plugin URI if a port symbol is changed.
+""" .
+
+# FIXME: This isn't really fundamental like :index and :symbol
+:name a rdf:Property ;
+    rdfs:domain  :Port ;
+    rdfs:label   "name" ;
+    rdfs:comment """
+A display name for labeling the Port in a user interface.
+
+This property is required for Ports, but MUST NOT be used by the host for
+port identification. The plugin author may change the values of this
+property without changing the Plugin URI.
+""" .
+
+
+
+#############################################
+# Port Additional RDF:Properties (Optional) #
+#############################################
+
+:Point a rdfs:Class ;
+   rdfs:label   "Port value point" ;
+   rdfs:comment """
+Used to describe interesting values in a Port's range.  To be valid it requires
+two rdf:properties, rdfs:label and rdf:value.
+
+There are 3 specially defined Points in the LV2 specification (default,
+minimum, and maximum), though future extensions may define more.
+""" .
+
+:ScalePoint a rdfs:Class ;
+    rdfs:subClassOf :Point ;
+    rdfs:comment "A single :float Point (for control inputs)" .
+
+:scalePoint a rdf:Property ;
+   rdfs:domain  :Port ;
+   rdfs:range   :ScalePoint ;
+   rdfs:label   "Scale point" ;
+   rdfs:comment "Relates a Port to its ScalePoints." .
+
+:default a rdf:Property ;
+    rdfs:subPropertyOf :scalePoint ;
+    rdfs:label         "Default value" ;
+    rdfs:comment """
+The default value that the host SHOULD set this port to when there is no other
+information available.
+""" .
+
+:minimum a rdf:Property ;
+    rdfs:subPropertyOf :scalePoint ;
+    rdfs:label         "Minimum value" ;
+    rdfs:comment """
+A hint to the host for the minimum useful value that the port will use.
+This is a "soft" limit - the plugin is required to gracefully accept all
+values in the range of :Float.
+""" .
+
+:maximum a rdf:Property ;
+    rdfs:subPropertyOf :scalePoint ;
+    rdfs:label         "Maximum value" ;
+    rdfs:comment """
+A hint to the host for the maximum useful value that the port will use.
+This is a "soft" limit - the plugin is required to gracefully accept all
+values in the range of :Float.
+""" .
+
+
+
+#############
+# Data Type #
+#############
+
+:Float a rdfs:DataType ;
+    rdfs:label   "32-bit Floating Point" ;
+    rdfs:comment """
+Value conforming to the 32bit IEEE-754 floating point specification.""".
+
+
+
+###################
+## Host Features ##
+###################
+
+:HostFeature a rdfs:Class ;
+    rdfs:label   "Host feature" ;
+    rdfs:comment "A host feature which a plugin may use (possibly require).".
+
+:supportedHostFeature a rdf:Property ;
+    rdfs:domain  :Plugin ;
+    rdfs:range   :HostFeature ;
+    rdfs:label   "Supported (optional) host feature" ;
+    rdfs:comment """
+Signifies that a plugin is able to make use of a certain host feature.
+The plugin MUST NOT fail to instantiate if a supported (but not required)
+host feature is not present.""" .
+
+:requiredHostFeature a rdf:Property ;
+    rdfs:domain  :Plugin ;
+    rdfs:range   :HostFeature ;
+    rdfs:label   "Required host feature" ;
+    rdfs:comment """
+Signifies that a plugin requires a certain host feature to function.
+The plugin MUST fail to instantiate if a required host feature is not present;
+hosts SHOULD always check this before attempting to instantiate a plugin
+(eg discovery by attempting to instantiate is strongly discouraged).
+""" .
+
+
+
+####################
+## LV2 Properties ##
+####################
+
+:Property a rdfs:Class ;
+    rdfs:label "Property" ;
+    rdfs:comment """
+An LV2 Property.  A host MUST NOT ignore the presence of a Property
+(eg if it does, something catastrophic will happen and the plugin will not
+function).  If a piece of information can be ignored by the host and the
+plugin can still function correctly, it is NOT a Property, it is a Hint.
+""" .
+    
+:PluginProperty a rdfs:Class ;
+    rdfs:label      "Plugin property" ;
+    rdfs:subClassOf :Property ;
+    rdfs:comment    "Property of a Plugin." .
+
+:PortProperty a rdfs:Class ;
+    rdfs:label      "Port property" ;
+    rdfs:subClassOf :Property ;
+    rdfs:comment    "Property of a Port." .
+
+:pluginProperty a rdf:Property ;
+    rdfs:domain  :Plugin ;
+    rdfs:range   :PluginProperty ;
+    rdfs:label   "Plugin property" ;
+    rdfs:comment "Relates Plugins to PluginProperties." .
+
+:portProperty a rdf:Property ;
+    rdfs:domain  :Port ;
+    rdfs:range   :PortProperty ;
+    rdfs:label   "hint" ;
+    rdfs:comment "Relates Ports to PortProperties." .
+
+
+###############
+## LV2 Hints ##
+###############
+
+:Hint a rdfs:Class ;
+    rdfs:label "Hint" ;
+    rdfs:comment """
+An LV2 Hint - a useful piece of information that allows a host to make more
+sensible decisions (eg to provide a better interface).  Unlike a Property
+a Hint may be ignored without catastrophic effects (though this doesn't mean
+a Hint is less "important" than a Property, whether or not it can be safely
+ignored and have the plugin still function correctly is the sole distinction).
+""" .
+
+:PluginHint a rdfs:Class ;
+    rdfs:label      "Plugin hint" ;
+    rdfs:subClassOf :Hint ;
+    rdfs:comment    "Hint for a Plugin." .
+
+:PortHint a rdfs:Class ;
+    rdfs:label      "Port hint" ;
+    rdfs:subClassOf :Hint ;
+    rdfs:comment    "Hint for a Port." .
+
+:pluginHint a rdf:Property ;
+    rdfs:domain  :Plugin ;
+    rdfs:range   :PluginHint ;
+    rdfs:label   "Plugin hint" ;
+    rdfs:comment "Relates Plugins to PluginHints." .
+
+:portHint a rdf:Property ;
+    rdfs:domain  :Port ;
+    rdfs:range   :PortHint ;
+    rdfs:label   "Port hint" ;
+    rdfs:comment "Relates Ports to PortHints." .
+
+
+
+#############################
+# Standard PluginProperties #
+#############################
+
+:isLive a :PluginProperty ;
+    rdfs:label   "Has a live (realtime) dependency" ;
+    rdfs:comment """
+Indicates that the plugin has a real-time dependency (e.g. queues data from a
+socket) and so its output must not be cached or subject to significant latency,
+and calls to the run method should be done in rapid succession.
+""" .
+
+:hardRTCapable a :PluginProperty ;
+    rdfs:label   "Hard realtime capable" ;
+    rdfs:comment """
+Indicates that the plugin is capable of running not only in a conventional host
+but also in a "hard real-time" environment. To qualify for this the plugin must
+satisfy all of the following:
+
+    (1) The plugin must not use malloc(), free() or other heap memory
+    management within its run() or run_adding() functions. All new
+    memory used in run() must be managed via the stack. These
+    restrictions only apply to the run() function.
+
+    (2) The plugin will not attempt to make use of any library
+    functions with the exceptions of functions in the ANSI standard C
+    and C maths libraries, which the host is expected to provide.
+
+    (3) The plugin will not access files, devices, pipes, sockets, IPC
+    or any other mechanism that might result in process or thread
+    blocking.
+      
+    (4) The plugin will take an amount of time to execute a run() or
+    run_adding() call approximately of form (A+B*SampleCount) where A
+    and B depend on the machine and host in use. This amount of time
+    may not depend on input signals or plugin state. The host is left
+    the responsibility to perform timings to estimate upper bounds for
+    A and B.
+""" .
+
+:inplaceBroken a :PluginProperty ;
+    rdfs:label   "in-place broken" ;
+    rdfs:comment """
+Indicates that the plugin may cease to work correctly if the host elects to use
+the same data location for both input and output.  Plugins that will fail to
+work correctly if ANY input buffer is set to the same location as ANY output
+buffer (with connect_port()) MUST set this property.  Doing so should be
+avoided as enabling this flag makes it impossible for hosts to use the plugin
+to process audio "in-place".
+""" .
+
+
+
+######################
+# Standard PortHints #
+######################
+
+:connectionOptional a :PortHint ;
+    rdfs:label   "Optionally connected port" ;
+    rdfs:comment """
+Indicates that this port does not have to be connected to valid data by the
+host. If it is to be disconnected then the port MUST set to NULL with a call
+to the connectPort method.
+""" .
+
+:reportsLatency a :PortHint ;
+    rdfs:label   "Latency reporting port" ;
+    rdfs:comment """
+Indicates that the port is used to express the processing latency incurred by
+the plugin, expressed in samples.  The latency may be affected by the current
+sample rate, plugin settings, or other factors, and may be changed by the
+plugin at any time.  Where the latency is frequency dependent the plugin may
+choose any appropriate value.  If a plugin introduces latency it MUST provide
+EXACTLY ONE port with this hint set which informs the host of the "correct" 
+latency.  In "fuzzy" cases the value output should be the most reasonable based
+on user expectation of input/output alignment (eg. musical delay/echo plugins
+should not report their delay as latency, as it is an intentional effect).
+""".
+
+:toggled a :PortHint ;
+   rdfs:label   "Toggled" ;
+   rdfs:comment """
+Indicates that the data item should be considered a Boolean toggle. Data less
+than or equal to zero should be considered "off" or "false", and data above
+zero should be considered "on" or "true".
+""" .
+
+:sampleRate a :PortHint ;
+   rdfs:label   "Sample rate" ;
+   rdfs:comment """
+Indicates that any bounds specified should be interpreted as multiples of the
+sample rate. For instance, a frequency range from 0Hz to the Nyquist frequency
+(half the sample rate) could be requested by this hint in conjunction with
+:minimum 0.0 and :maximum 0.5. Hosts that support bounds at all must support
+this hint to retain meaning.
+""" .
+
+:integer a :PortHint ;
+   rdfs:label   "Integer" ;
+   rdfs:comment """
+Indicates that a port's reasonable values are integers (eg. a user interface
+would likely wish to provide a stepped control allowing only integer input).
+A plugin MUST operate reasonably even if such a port has a non-integer input.
+""" .
+
+
+
+###############################
+# Plugin Categories (Classes) #
+###############################
+
+:UtilityPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Utilities" ;
+    rdfs:comment """
+Includes things like mathematical functions and non-musical delays.
+""" .
+
+:GeneratorPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Generators" ;
+    rdfs:comment """
+Any plugin that generates sound internally, rather than processing its input.
+""" .
+
+:OscillatorPlugin a rdfs:Class ;
+    rdfs:subClassOf :GeneratorPlugin ;
+    rdfs:label "Oscillators" .
+
+:SimulatorPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Simulators" ;
+    rdfs:comment """
+Plugins that aim to duplicate the effect of some environmental effect or
+musical equipment.
+""" .
+
+:DelayPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Delays" ;
+    rdfs:comment """
+Plugins that intentionally delay their input signal as an effect.
+""" .
+
+:PhaserPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Phasers" .
+
+:FlangerPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Flangers" .
+
+:ChorusPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Chorus" .
+
+:ReverbPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:subClassOf :SimulatorPlugin ;
+    rdfs:subClassOf :DelayPlugin ;
+    rdfs:label "Reverb" .
+
+:FilterPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Filters" .
+
+:LowpassPlugin a rdfs:Class ;
+    rdfs:subClassOf :FilterPlugin ;
+    rdfs:label "Lowpass" .
+
+:BandpassPlugin a rdfs:Class ;
+    rdfs:subClassOf :FilterPlugin ;
+    rdfs:label "Bandpass" .
+
+:HighpassPlugin a rdfs:Class ;
+    rdfs:subClassOf :FilterPlugin ;
+    rdfs:label "Highpass" .
+
+:CombPlugin a rdfs:Class ;
+    rdfs:subClassOf :FilterPlugin ;
+    rdfs:label "Combs" .
+
+:AllpassPlugin a rdfs:Class ;
+    rdfs:subClassOf :FilterPlugin ;
+    rdfs:label "Allpass" .
+
+:EQPlugin a rdfs:Class ;
+    rdfs:subClassOf :FilterPlugin ;
+    rdfs:label "Equalisers" .
+
+:ParaEQPlugin a rdfs:Class ;
+    rdfs:subClassOf :EQPlugin ;
+    rdfs:label "Parametrics" .
+
+:MultiEQPlugin a rdfs:Class ;
+    rdfs:subClassOf :EQPlugin ;
+    rdfs:label "Multibands" .
+
+:PitchPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Pitch Shifters" .
+
+:AmplifierPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Amplifiers" .
+
+:WaveshaperPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Waveshapers" .
+
+:ModulatorPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Modulators" .
+
+:DistortionPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Distortions" .
+
+:DynamicsPlugin a rdfs:Class ;
+    rdfs:subClassOf :Plugin ;
+    rdfs:label "Dynamics processors" ;
+    rdfs:comment """
+Plugins that alter the envelope or dynamic range of the processed audio.
+""" .
+
+:CompressorPlugin a rdfs:Class ;
+    rdfs:subClassOf :DynamicsPlugin ;
+    rdfs:label "Compressors" .
+
+:ExpanderPlugin a rdfs:Class ;
+    rdfs:subClassOf :DynamicsPlugin ;
+    rdfs:label "Expanders" .
+
+:LimiterPlugin a rdfs:Class ;
+    rdfs:subClassOf :DynamicsPlugin ;
+    rdfs:label "Limiters" .
+
+:GatePlugin a rdfs:Class ;
+    rdfs:subClassOf :DynamicsPlugin ;
+    rdfs:label "Gates" .