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-# LV2 Event Extension
-# Copyright 2008-2011 David Robillard <http://drobilla.net>
-#
-# Permission to use, copy, modify, and/or distribute this software for any
-# purpose with or without fee is hereby granted, provided that the above
-# copyright notice and this permission notice appear in all copies.
-#
-# THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-@prefix doap: <http://usefulinc.com/ns/doap#> .
-@prefix ev: <http://lv2plug.in/ns/ext/event#> .
-@prefix foaf: <http://xmlns.com/foaf/0.1/> .
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix lv2ev: <http://lv2plug.in/ns/ext/event#> .
-@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#> .
-
-<http://lv2plug.in/ns/ext/event>
- a lv2:Specification ;
- owl:deprecated true ;
- doap:license <http://opensource.org/licenses/isc-license> ;
- doap:name "LV2 Event" ;
- doap:shortdesc "A port-based real-time generic event interface." ;
- rdfs:seeAlso <event-helpers.h> ;
- doap:release [
- doap:revision "1.3" ;
- doap:created "2011-11-23"
- ] ;
- doap:maintainer [
- a foaf:Person ;
- foaf:name "David Robillard" ;
- foaf:homepage <http://drobilla.net/> ;
- rdfs:seeAlso <http://drobilla.net/drobilla.xrdf>
- ] , [
- a foaf:Person ;
- foaf:name "Lars Luthman" ;
- ] ;
- lv2:documentation """
-<p><span class="warning">This extension is deprecated.</span> New
-implementations should use <a href="http://lv2plug.in/ns/ext/atom">LV2 Atom</a>
-instead.</p>
-
-<p>This extension defines a generic time-stamped event port type, which can be
-used to create plugins that read and write real-time events, such as MIDI,
-OSC, or any other type of event payload. The type(s) of event supported by
-a port is defined in the data file for a plugin, for example:</p>
-<pre class="turtle-code">
-&lt;http://example.org/some-plugin&gt;
- lv2:port [
- a ev:EventPort, lv2:InputPort ;
- lv2:index 0 ;
- ev:supportsEvent &lt;http://lv2plug.in/ns/ext/midi#MidiEvent&gt; ;
- lv2:symbol "midi_input" ;
- lv2:name "MIDI input" ;
- ] .
-</pre>
-""" .
-
-ev:EventPort a rdfs:Class ;
- rdfs:label "Event port" ;
- rdfs:subClassOf lv2:Port ;
- rdfs:comment """
-Ports of this type will be connected to a struct of type LV2_Event_Buffer,
-defined in event.h. These ports contain a sequence of generic events
-(possibly several types mixed in a single stream), the specific types of
-which are defined by some URI in another LV2 extension.
-""" .
-
-
-ev:Event a rdfs:Class ;
- rdfs:label "LV2 event" ;
- rdfs:comment """
-A single generic time-stamped event.
-
-An lv2ev:EventPort contains an LV2_Event_Buffer which contains a sequence
-of these events. The binary format of LV2 events is defined by the
-LV2_Event struct in event.h.
-
-Specific event types (e.g. MIDI, OSC) are defined by extensions, and should
-be rdfs:subClassOf this class.
-""" .
-
-
-ev:TimeStamp a rdfs:Class ;
- rdfs:label "LV2 event time stamp" ;
- rdfs:comment """
-The time stamp of an Event.
-
-This defines the meaning of the 'frames' and 'subframes' fields of an
-LV2_Event (both unsigned 32-bit integers).
-""" .
-
-
-ev:FrameStamp a rdfs:Class ;
- rdfs:subClassOf ev:TimeStamp ;
- rdfs:label "Audio frame time stamp" ;
- rdfs:comment """
-The default time stamp unit for an LV2 event: the frames field represents
-audio frames (in the sample rate passed to intantiate), and the subframes
-field is 1/UINT32_MAX of a frame.
-""" .
-
-
-ev:generic a lv2:PortProperty ;
- rdfs:label "Generic event port" ;
- rdfs:comment """
-Indicates that this port does something meaningful for any event type
-(e.g. event mixers, delays, serialisers, etc). If this property is set, hosts
-should consider the port suitable for any type of event. Otherwise, hosts
-should consider the port 'appropriate' only for the specific event types
-listed with :supportsEvent. Note that plugins must gracefully handle unknown
-event types whether or not this property is present.
-""" .
-
-
-ev:supportsEvent a rdf:Property ;
- rdfs:domain lv2:Port ;
- rdfs:range ev:Event ;
- rdfs:label "Supports event type" ;
- rdfs:comment """
-Indicates that this port supports or "understands" a certain event type.
-For input ports, this means the plugin understands and does something useful
-with events of this type. For output ports, this means the plugin may generate
-events of this type. If the plugin never actually generates events of this type,
-but might pass them through from an input, this property should not be set (use
-ev:inheritsEvent for that).
-Plugins with event input ports must always gracefully handle any type of event,
-even if it does not 'support' it. This property should always be set for
-event types the plugin understands/generates so hosts can discover plugins
-appropriate for a given scenario (e.g. plugins with a MIDI input).
-Hosts are not expected to consider event ports suitable for some type of
-event if the relevant :supportsEvent property is not set, unless the
-lv2ev:generic property for that port is also set.
-""" .
-
-
-ev:inheritsEvent a rdf:Property ;
- rdfs:domain lv2:Port ;
- rdfs:range lv2:Port ;
- rdfs:label "Inherits event type" ;
- rdfs:comment """
-Indicates that this output port might pass through events that arrived at some
-other input port (or generate an event of the same type as events arriving at
-that input). The host must always check the stamp type of all outputs when
-connecting an input, but this property should be set whenever it applies.
-""" .
-
-
-ev:supportsTimeStamp a rdf:Property ;
- rdfs:domain lv2:Port ;
- rdfs:range ev:TimeStamp ;
- rdfs:label "Supports time stamp type" ;
- rdfs:comment """
-Indicates that this port supports or "understands" a certain time stamp type.
-Meaningful only for input ports, the host must never connect a port to an
-event buffer with a time stamp type that isn't supported by the port.
-""" .
-
-
-ev:generatesTimeStamp a rdf:Property ;
- rdfs:domain lv2:Port ;
- rdfs:range ev:TimeStamp ;
- rdfs:label "Outputs time stamp type" ;
- rdfs:comment """
-Indicates that this port may output a certain time stamp type, regardless of
-the time stamp type of any input ports. If the port outputs stamps based on
-what type inputs are connected to, this property should not be set (use the
-ev:inheritsTimeStamp property for that). Hosts MUST check the time_stamp value
-of any output port buffers after a call to connect_port on ANY event input
-port on the plugin. If the plugin changes the stamp_type field of an output
-event buffer during a call to run(), the plugin must call the
-stamp_type_changed function provided by the host in the LV2_Event_Feature
-struct, if it is non-NULL.
-""" .
-
-
-ev:inheritsTimeStamp a rdf:Property ;
- rdfs:domain lv2:Port ;
- rdfs:range lv2:Port ;
- rdfs:label "Inherits time stamp type" ;
- rdfs:comment """
-Indicates that this port follows the time stamp type of an input port.
-This property is not necessary, but it should be set for outputs that
-base their output type on an input port so the host can make more sense
-of the plugin and provide a more sensible interface.
-""" .
-