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authorDavid Robillard <d@drobilla.net>2007-02-08 03:56:42 +0000
committerDavid Robillard <d@drobilla.net>2007-02-08 03:56:42 +0000
commit735173b0f47f362896594deab1a3b76ac3f7081f (patch)
treeda69fcce108ccaef34cb3bd015616e034b5ebb53 /data
parent3025fe5b0583fd621d82f3108bb35a116414dad4 (diff)
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Circular nodes in FlowCanvas, related necessary redesign work and changes for API update.
Beginnings of a Machina GUI. git-svn-id: http://svn.drobilla.net/lad/slv2@290 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'data')
-rw-r--r--data/lv2.ttl118
1 files changed, 36 insertions, 82 deletions
diff --git a/data/lv2.ttl b/data/lv2.ttl
index 6f02475..7c2d06f 100644
--- a/data/lv2.ttl
+++ b/data/lv2.ttl
@@ -1,7 +1,7 @@
# RDF Schema for LV2 plugins
# *** PROVISIONAL ***
#
-# Revision 2007-02-06
+# *** PROPOSED Revision 2007-02-07 ***
#
# This document describes the classes and properties that are defined by the
# core LV2 specification. See <http://lv2plug.in> for more information.
@@ -52,7 +52,7 @@
] , [
a foaf:Person ;
foaf:name "Dave Robillard" ;
- rdfs:seeAlso <http://drobilla.net/dave.ttl>
+ rdfs:seeAlso <http://drobilla.net/drobilla.ttl>
].
@@ -82,74 +82,57 @@ To be used by a host a Plugin must have at least the following properties:
:Port a rdfs:Class ;
rdfs:label "Port" ;
rdfs:comment """
-The class that represents an LV2 port
+The class which 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
+ rdf:type (with object one of :Port, :InputPort, :OutputPort)
+ rdf:type (more specific port class, see below)
:index
:symbol
:name
+
+All LV2 port descriptions MUST have a property rdf:type where the object
+is one of :Port :InputPort or :OutputPort. Additionally there MUST be
+at least one other rdf:type property which more specifically describes
+type of the port (e.g. :AudioPort).
+
+Hosts that do not support a specific port class 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).
""" .
:InputPort a rdfs:Class ;
- rdfs:subClassOf :Port .
+ rdfs:label "Input port" ;
+ rdfs:subClassOf :Port ;
+ rdfs:comment """
+Ports of this type will be connected to a pointer to some value, which will
+be read by the plugin during their run method.
+""" .
: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.
+ rdfs:label "Output port" ;
+ rdfs:subClassOf :Port ;
+ rdfs:comment """
+Ports of this type will be connected to a pointer to some value, which will
+be written to by the plugin during their run method.
""" .
-:ControlRateOutputPort a rdfs:Class ;
- rdfs:label "Control-rate output port" ;
- rdfs:subClassOf :ControlRatePort ;
- rdfs:subClassOf :OutputPort ;
+:ControlPort a rdfs:Class ;
+ rdfs:label "Control port" ;
+ rdfs:subClassOf :Port ;
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.
+Ports of this type will be connected to a pointer to a single value conforming
+to the 32bit IEEE-754 floating point specification.
""" .
-:AudioRateInputPort a rdfs:Class ;
- rdfs:label "Audio-rate input port" ;
- rdfs:subClassOf :AudioRatePort ;
- rdfs:subClassOf :InputPort ;
+:AudioPort a rdfs:Class ;
+ rdfs:label "Audio port" ;
+ rdfs:subClassOf :Port ;
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.
-""" .
+Ports of this type will be connected to an array of length SampleCount
+conforming to the 32bit IEEE-754 floating point specification,
+representing an audio waveform (i.e. suitable for speaker playback). """ .
@@ -168,24 +151,6 @@ 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 ;
@@ -275,17 +240,6 @@ values in the range of :float.
-#############
-# Data Type #
-#############
-
-:float a :DataType ;
- rdfs:label "32-bit floating point" ;
- rdfs:comment """
-Value conforming to the 32bit IEEE-754 floating point specification.""".
-
-
-
###################
## Host Features ##
###################