Lay out repository structure to match include and URI structure.

Treat lv2core like all the other specifications in gendoc.py.

12 files changed, 899 insertions, 0 deletions

diff --git a/ns/extensions/ui/ext.pc.in b/ns/extensions/ui/ext.pc.in
new file mode 120000
index 0000000..1cdad2a
--- /dev/null
+++ b/ns/extensions/ui/ext.pc.in
@@ -0,0 +1 @@
+../../../ext.pc.in
\ No newline at end of file
diff --git a/ns/extensions/ui/lv2-ui.doap.ttl b/ns/extensions/ui/lv2-ui.doap.ttl
new file mode 100644
index 0000000..44b135d
--- /dev/null
+++ b/ns/extensions/ui/lv2-ui.doap.ttl
@@ -0,0 +1,62 @@
+@prefix dcs: <http://ontologi.es/doap-changeset#> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://drobilla.net/drobilla#me>
+	a foaf:Person ;
+	foaf:name "David Robillard" ;
+	foaf:homepage <http://drobilla.net/> ;
+	foaf:mbox <mailto:d@drobilla.net> ;
+	rdfs:seeAlso <http://drobilla.net/drobilla> .
+
+<http://lv2plug.in/ns/extensions/ui>
+	a doap:Project ;
+	doap:license <http://opensource.org/licenses/isc-license> ;
+	doap:name "LV2 UI" ;
+	doap:shortdesc "Generic UI interface for LV2 plugins." ;
+	doap:developer [
+		a foaf:Person ;
+		foaf:name "Lars Luthman" ;
+		foaf:mbox <mailto:lars.luthman@gmail.com>
+	] ;
+	doap:maintainer <http://drobilla.net/drobilla#me> ;
+	doap:release [
+		doap:revision "2.3" ;
+		dcs:blame <http://drobilla.net/drobilla#me> ;
+		dcs:changeset [
+			dcs:item [
+				rdfs:label "Deprecate ui:makeSONameResident."
+			] , [
+				rdfs:label "Add Qt4 and X11 widget types."
+			] , [
+				rdfs:label "Install header to URI-based system path."
+			] , [
+				rdfs:label "Add pkg-config file."
+			] , [
+				rdfs:label "Make ui.ttl a valid OWL 2 DL ontology."
+			]
+		]
+	] , [
+		doap:revision "2.2" ;
+		doap:created "2011-05-26" ;
+		doap:file-release <http://lv2plug.in/spec/lv2-ui-2.2.tar.bz2> ;
+		dcs:blame <http://drobilla.net/drobilla#me> ;
+		dcs:changeset [
+			dcs:item [
+				rdfs:label "Convert documentation to HTML and use lv2:documentation."
+			] , [
+				rdfs:label "Use lv2:Specification to be discovered as an extension."
+			]
+		]
+	] , [
+		doap:revision "2.0" ;
+		doap:created "2010-10-06" ;
+		doap:file-release <http://lv2plug.in/spec/lv2-ui-2.0.tar.gz> ;
+		dcs:blame <http://drobilla.net/drobilla#me> ;
+		dcs:changeset [
+			dcs:item [
+				rdfs:label "Initial release."
+			]
+		]
+	] .
diff --git a/ns/extensions/ui/manifest.ttl b/ns/extensions/ui/manifest.ttl
new file mode 100644
index 0000000..febbaad
--- /dev/null
+++ b/ns/extensions/ui/manifest.ttl
@@ -0,0 +1,9 @@
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://lv2plug.in/ns/extensions/ui>
+	a lv2:Specification ;
+	lv2:minorVersion 2 ;
+	lv2:microVersion 3 ;
+	rdfs:seeAlso <ui.ttl> ,
+		<lv2-ui.doap.ttl> .
diff --git a/ns/extensions/ui/ui.h b/ns/extensions/ui/ui.h
new file mode 100644
index 0000000..6d64a0d
--- /dev/null
+++ b/ns/extensions/ui/ui.h
@@ -0,0 +1,247 @@
+/*
+  LV2 UI Extension
+  Copyright 2009-2011 David Robillard <d@drobilla.net>
+  Copyright 2006-2008 Lars Luthman <lars.luthman@gmail.com>
+
+  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.
+*/
+
+/**
+ * @file
+ * C header for the LV2 UI extension <http://lv2plug.in/ns/extensions/ui>.
+ */
+
+#ifndef LV2_UI_H
+#define LV2_UI_H
+
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+
+#define LV2_UI_URI "http://lv2plug.in/ns/extensions/ui"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   A pointer to some widget or other type of UI handle.
+
+   The actual type is defined by the type URI of the UI.  All the functionality
+   provided by this extension is toolkit independent, the host only needs to
+   pass the necessary callbacks and display the widget, if possible.  Plugins
+   may have several UIs, in various toolkits.
+*/
+typedef void* LV2UI_Widget;
+
+/**
+   A pointer to a particular instance of a UI.
+
+   It is valid to compare this to NULL (0 for C++) but otherwise the host MUST
+   not attempt to interpret it.  The UI plugin may use it to reference internal
+   instance data.
+*/
+typedef void* LV2UI_Handle;
+
+/**
+   A pointer to a particular plugin controller, provided by the host.
+
+   It is valid to compare this to NULL (0 for C++) but otherwise the UI plugin
+   MUST NOT attempt to interpret it.  The host may use it to reference internal
+   instance data.
+*/
+typedef void* LV2UI_Controller;
+
+/**
+   The type of the host-provided function that the UI can use to
+   send data to a plugin's input ports.
+
+   The @c buffer parameter must point to a block of data, @c buffer_size bytes
+   large.  The contents of this buffer and what the host should do with it
+   depends on the value of the @c format parameter.
+
+   The @c format parameter should either be 0 or a numeric ID for a "Transfer
+   mechanism".  Transfer mechanisms are Features and may be defined in
+   meta-extensions.  They specify how to translate the data buffers passed to
+   this function to input data for the plugin ports.  If a UI wishes to write
+   data to an input port, it must list a transfer mechanism Feature for that
+   port's class as an optional or required feature (depending on whether the UI
+   will work without being able to write to that port or not).  The only
+   exception is when the UI wants to write single float values to input ports
+   of the class lv2:ControlPort, in which case @c buffer_size should always be
+   4, the buffer should always contain a single IEEE-754 float, and @c format
+   should be 0.
+
+   The numeric IDs for the transfer mechanisms are provided by a URI-to-integer
+   mapping function provided by the host, using the URI Map feature
+   <http://lv2plug.in/ns/ext/uri-map> with the map URI
+   "http://lv2plug.in/ns/extensions/ui".  Thus a UI that requires transfer
+   mechanism features also requires the URI Map feature, but this is implicit -
+   the UI does not have to list the URI map feature as a required or optional
+   feature in it's RDF data.
+
+   An UI MUST NOT pass a @c format parameter value (except 0) that has not been
+   returned by the host-provided URI mapping function for a host-supported
+   transfer mechanism feature URI.
+
+   The UI MUST NOT try to write to a port for which there is no specified
+   transfer mechanism, or to an output port.  The UI is responsible for
+   allocating the buffer and deallocating it after the call.
+*/
+typedef void (*LV2UI_Write_Function)(LV2UI_Controller controller,
+                                     uint32_t         port_index,
+                                     uint32_t         buffer_size,
+                                     uint32_t         format,
+                                     const void*      buffer);
+
+/**
+   The implementation of a UI.
+
+   A pointer to an object of this type is returned by the lv2ui_descriptor()
+   function.
+*/
+typedef struct _LV2UI_Descriptor {
+  /**
+     The URI for this UI (not for the plugin it controls).
+  */
+  const char* URI;
+
+  /**
+     Create a new UI object and return a handle to it.  This function works
+     similarly to the instantiate() member in LV2_Descriptor.
+
+     @param descriptor The descriptor for the UI that you want to instantiate.
+
+     @param plugin_uri The URI of the plugin that this UI will control.
+
+     @param bundle_path The path to the bundle containing the RDF data file
+     that references this shared object file, including the trailing '/'.
+
+     @param write_function A function provided by the host that the UI can use
+     to send data to the plugin's input ports.
+
+     @param controller A handle for the plugin instance that should be passed
+     as the first parameter of @c write_function.
+
+     @param widget A pointer to an LV2UI_Widget.  The UI will write a widget
+     pointer to this location (what type of widget depends on the RDF class of
+     the UI) that will be the main UI widget.
+
+     @param features An array of LV2_Feature pointers.  The host must pass all
+     feature URIs that it and the UI supports and any additional data, just
+     like in the LV2 plugin instantiate() function.  Note that UI features and
+     plugin features are NOT necessarily the same, they just share the same
+     data structure - this will probably not be the same array as the one the
+     plugin host passes to a plugin.
+
+  */
+  LV2UI_Handle (*instantiate)(const struct _LV2UI_Descriptor* descriptor,
+                              const char*                     plugin_uri,
+                              const char*                     bundle_path,
+                              LV2UI_Write_Function            write_function,
+                              LV2UI_Controller                controller,
+                              LV2UI_Widget*                   widget,
+                              const LV2_Feature* const*       features);
+
+
+  /**
+     Destroy the UI object and the associated widget. The host must not try
+     to access the widget after calling this function.
+   */
+  void (*cleanup)(LV2UI_Handle ui);
+
+  /**
+     Tell the UI that something interesting has happened at a plugin port.
+
+     What is interesting and how it is written to the buffer passed to this
+     function is defined by the @c format parameter, which has the same meaning
+     as in LV2UI_Write_Function.  The only exception is ports of the class
+     lv2:ControlPort, for which this function should be called when the port
+     value changes (it does not have to be called for every single change if
+     the host's UI thread has problems keeping up with the thread the plugin is
+     running in), @c buffer_size should be 4, the buffer should contain a
+     single IEEE-754 float, and @c format should be 0.
+
+     By default, the host should only call this function for input ports of the
+     lv2:ControlPort class.  However, the default setting can be modified by
+     using the following URIs in the UI's RDF data:
+     <pre>
+     uiext:portNotification
+     uiext:noPortNotification
+     uiext:plugin
+     uiext:portIndex
+     </pre>
+     For example, if you want the UI with uri
+     <code><http://my.pluginui></code> for the plugin with URI
+     <code><http://my.plugin></code> to get notified when the value of the
+     output control port with index 4 changes, you would use the following
+     in the RDF for your UI:
+     <pre>
+     <http://my.pluginui> uiext:portNotification [ uiext:plugin <http://my.plugin> ;
+     uiext:portIndex 4 ] .
+     </pre>
+     and similarly with <code>uiext:noPortNotification</code> if you wanted
+     to prevent notifications for a port for which it would be on by default
+     otherwise. The UI is not allowed to request notifications for ports of
+     types for which no transfer mechanism is specified, if it does it should
+     be considered broken and the host should not load it.
+
+     The @c buffer is only valid during the time of this function call, so if
+     the UI wants to keep it for later use it has to copy the contents to an
+     internal buffer.
+
+     This member may be set to NULL if the UI is not interested in any
+     port events.
+  */
+  void (*port_event)(LV2UI_Handle ui,
+                     uint32_t     port_index,
+                     uint32_t     buffer_size,
+                     uint32_t     format,
+                     const void*  buffer);
+
+  /**
+     Return a data structure associated with an extension URI, for example
+     a struct containing additional function pointers.
+
+     Avoid returning function pointers directly since standard C/C++ has no
+     valid way of casting a void* to a function pointer. This member may be set
+     to NULL if the UI is not interested in supporting any extensions. This is
+     similar to the extension_data() member in LV2_Descriptor.
+  */
+  const void* (*extension_data)(const char* uri);
+
+} LV2UI_Descriptor;
+
+/**
+   A plugin UI programmer must include a function called "lv2ui_descriptor"
+   with the following function prototype within the shared object file.  This
+   function will have C-style linkage (if you are using C++ this is taken care
+   of by the 'extern "C"' clause at the top of the file).  This function will
+   be accessed by the UI host using the @c dlsym() function and called to get a
+   LV2UI_UIDescriptor for the wanted plugin.
+
+   Just like lv2_descriptor(), this function takes an index parameter.  The
+   index should only be used for enumeration and not as any sort of ID number -
+   the host should just iterate from 0 and upwards until the function returns
+   NULL or a descriptor with an URI matching the one the host is looking for.
+*/
+const LV2UI_Descriptor* lv2ui_descriptor(uint32_t index);
+
+/**
+   The type of the lv2ui_descriptor() function.
+*/
+typedef const LV2UI_Descriptor* (*LV2UI_DescriptorFunction)(uint32_t index);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LV2_UI_H */
diff --git a/ns/extensions/ui/ui.ttl b/ns/extensions/ui/ui.ttl
new file mode 100644
index 0000000..f62569a
--- /dev/null
+++ b/ns/extensions/ui/ui.ttl
@@ -0,0 +1,220 @@
+# LV2 UI Extension
+# Copyright 2009-2011 David Robillard <d@drobilla.net>
+# Copyright 2006-2008 Lars Luthman <lars.luthman@gmail.com>
+#
+# 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 foaf: <http://xmlns.com/foaf/0.1/> .
+@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 ui:   <http://lv2plug.in/ns/extensions/ui#> .
+@prefix xsd:  <http://www.w3.org/2001/XMLSchema#> .
+
+<http://lv2plug.in/ns/extensions/ui>
+	a owl:Ontology ;
+	owl:imports <http://lv2plug.in/ns/lv2core> ;
+	lv2:documentation """
+<p>This extension defines an interface that can be used in LV2 plugins and
+hosts to create UIs for plugins. The UIs are similar to plugins and reside in
+shared object files in an LV2 bundle.  UIs are associated with a plugin in RDF
+using the triples:</p>
+
+<pre class="turtle-code">
+@prefix ui: &lt;http://lv2plug.in/ns/extensions/ui#&gt; .
+
+&lt;http://my.plugin&gt;   ui:ui     &lt;http://my.pluginui&gt; .
+&lt;http://my.pluginui&gt; a         ui:GtkUI ;
+                     ui:binary &lt;myui.so&gt; .
+</pre>
+
+<p>where &lt;http://my.plugin&gt; is the URI of the plugin,
+&lt;http://my.pluginui&gt; is the URI of the plugin UI and &lt;myui.so&gt; is
+the relative URI to the shared object file.</p>
+
+<p>While it is possible to have the plugin UI and the plugin in the same shared
+object file it is probably a good idea to keep them separate so that hosts that
+don't want UIs don't have to load the UI code.  A UI MUST specify its class in
+the RDF data (ui:GtkUI in the above example). The class defines what type the
+UI is, e.g. what graphics toolkit it uses.  Any type of UI class can be defined
+separately from this extension.</p>
+
+<p>It is possible to have multiple UIs for the same plugin, or to have the UI
+for a plugin in a different bundle from the actual plugin - this way people
+other than the plugin author can write plugin UIs independently without editing
+the original plugin bundle.</p>
+
+<p>Note that the process that loads the shared object file containing the UI
+code and the process that loads the shared object file containing the actual
+plugin implementation are not necessarily the same process (and not even
+necessarily on the same machine).  This means that plugin and UI code can
+<strong>not</strong> use singletons and global variables and expect them to
+refer to the same objects in the UI and the actual plugin. The function
+callback interface defined in this header is the only method of communication
+between UIs and plugin instances (extensions may define more, though this is
+discouraged unless absolutely necessary since the significant benefits of
+network transparency and serialisability are lost).</p>
+
+<p>Since the LV2 specification itself allows for extensions that may add new
+functionality that could be useful to control with a UI, this extension allows
+for meta-extensions that can extend the interface between the UI and the
+host. These extensions mirror the extensions used for plugins - there are
+required and optional "features" that you declare in the RDF data for the
+UI:</p>
+
+<pre class="turtle-code">
+&lt;http://my.pluginui&gt; lv2:requiredFeature &lt;http://my.feature&gt; .
+&lt;http://my.pluginui&gt; lv2:optionalFeature &lt;http://my.feature&gt; .
+</pre>
+
+<p>The rules for a UI with a required or optional feature are identical to
+those of lv2:Plugin instances: if a UI declares a feature as required, the host
+is NOT allowed to load it unless it supports that feature; and if it does
+support a feature, it MUST pass an appropriate LV2_Feature struct to the UI's
+instantiate() method.  These features may be used to specify how to pass
+specific types of data between the UI and the plugin port buffers (see
+LV2UI_Write_Function for details).</p>
+
+<p>UIs written to this specification do not need to be threadsafe - the
+functions defined below may only be called in the same thread the UI main loop
+is running in.</p>
+
+<p>Note that this UI extension is NOT a lv2:Feature. There is no way for a
+plugin to know whether the host that loads it supports UIs or not, and the
+plugin must always work without the UI (although it may be rather useless
+unless it has been configured using the UI in a previous session).  From the
+plugin perspective, control from a UI is the same as control from anywhere else
+(e.g. the host, the user): via ports.</p>
+
+<p>A UI does not have to be a graphical widget, it could just as well be a
+server listening for OSC input or an interface to some sort of hardware device,
+depending on the RDF class of the UI.</p>
+""" .
+
+ui:UI
+	a rdfs:Class ,
+		owl:Class ;
+	rdfs:subClassOf lv2:Resource ;
+	rdfs:label "LV2 UI" ;
+	rdfs:comment "A UI for an LV2 plugin" .
+
+ui:GtkUI
+	a rdfs:Class ,
+		owl:Class ;
+	rdfs:subClassOf ui:UI ;
+	rdfs:comment """
+A UI where the LV2_Widget is a pointer to a Gtk+ 2.0 compatible GtkWidget,
+and the host guarantees that the Gtk+ library has been initialised and the
+Glib main loop is running before a UI of this type is instantiated.""" .
+
+ui:Qt4UI
+	a rdfs:Class ,
+		owl:Class ;
+	rdfs:subClassOf ui:UI ;
+	rdfs:comment """
+A UI where the LV2_Widget is a pointer to a Qt4 compatible QWidget,
+and the host guarantees that the Qt4 library has been initialised and the
+Qt4 main loop is running before a UI of this type is instantiated.""" .
+
+ui:X11UI
+	a rdfs:Class ,
+		owl:Class ;
+	rdfs:subClassOf ui:UI ;
+	rdfs:comment """
+A UI where the LV2_Widget is an X11 window ID.  Note this is actually an
+integer, i.e. the LV2_Widget is not a pointer to an X11 window ID, but should
+be itself taken as an integer value.""" .
+
+ui:makeSONameResident
+	a lv2:Feature ;
+	owl:deprecated "true"^^xsd:boolean ;
+	lv2:documentation """
+<p>DEPRECATED</p>
+
+<p>This feature was intended to support UIs that link against toolkit
+libraries which may not be unloaded during the lifetime of the host.
+This is better achieved by using the appropriate flags when linking the
+UI, e.g. <code>gcc -Wl,nodelete</code>.</p>
+""" .
+
+ui:noUserResize
+	a lv2:Feature ;
+	lv2:documentation """
+<p>If a UI requires this feature it indicates that it does not make sense
+to let the user resize the main widget, and the host should prevent that.
+This feature may not make sense for all UI types. The data pointer for the
+LV2_Feature for this feature should always be set to NULL.</p>
+""" .
+
+ui:fixedSize
+	a lv2:Feature ;
+	lv2:documentation """
+<p>If a UI requires this feature it indicates the same thing as
+ui:noUserResize, and additionally it means that the UI will not resize
+the main widget on its own - it will always remain the same size (e.g. a
+pixmap based GUI). This feature may not make sense for all UI types.
+The data pointer for the LV2_Feature for this feature should always be set
+to NULL.</p>
+""" .
+
+ui:PortNotification
+	a rdfs:Class ,
+		owl:Class ;
+	rdfs:subClassOf [
+		a owl:Restriction ;
+		owl:onProperty ui:plugin ;
+		owl:someValuesFrom lv2:Plugin ;
+		owl:cardinality 1 ;
+		rdfs:comment """
+A PortNotification MUST have exactly one ui:plugin which is a lv2:Plugin.
+"""
+	] , [
+		a owl:Restriction ;
+		owl:onProperty ui:portIndex ;
+		owl:someValuesFrom xsd:decimal ;
+		owl:cardinality 1 ;
+		rdfs:comment """
+A PortNotification MUST have exactly one ui:portIndex which is an xsd:decimal.
+"""
+	] ;
+	rdfs:comment "Port Notification" .
+
+ui:portNotification
+	a rdf:Property ,
+		owl:ObjectProperty ;
+	rdfs:domain ui:UI ;
+	rdfs:range ui:PortNotification ;
+	lv2:documentation """
+<p>Indicates that a UI should receive notification (via
+LV2UI_Descriptor::port_event()) when a particular port's value changes.</p>
+""" .
+
+ui:plugin
+	a rdf:Property ,
+		owl:ObjectProperty ;
+	rdfs:domain ui:PortNotification ;
+	rdfs:range lv2:Plugin ;
+	rdfs:comment """
+The plugin a portNotification applies to.
+""" .
+
+ui:portIndex
+	a rdf:Property ,
+		owl:DatatypeProperty ;
+	rdfs:domain ui:PortNotification ;
+	rdfs:range xsd:decimal ;
+	rdfs:comment """
+The index of the port a portNotification applies to.
+""" .
diff --git a/ns/extensions/ui/waf b/ns/extensions/ui/waf
new file mode 120000
index 0000000..917d5c5
--- /dev/null
+++ b/ns/extensions/ui/waf
@@ -0,0 +1 @@
+../../../waf
\ No newline at end of file
diff --git a/ns/extensions/ui/wscript b/ns/extensions/ui/wscript
new file mode 120000
index 0000000..cf8cbae
--- /dev/null
+++ b/ns/extensions/ui/wscript
@@ -0,0 +1 @@
+../../../ext.wscript
\ No newline at end of file
diff --git a/ns/extensions/units/ext.pc.in b/ns/extensions/units/ext.pc.in
new file mode 120000
index 0000000..1cdad2a
--- /dev/null
+++ b/ns/extensions/units/ext.pc.in
@@ -0,0 +1 @@
+../../../ext.pc.in
\ No newline at end of file
diff --git a/ns/extensions/units/manifest.ttl b/ns/extensions/units/manifest.ttl
new file mode 100644
index 0000000..2c41838
--- /dev/null
+++ b/ns/extensions/units/manifest.ttl
@@ -0,0 +1,9 @@
+@prefix lv2:  <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://lv2plug.in/ns/extensions/units>
+	a lv2:Specification ;
+	lv2:minorVersion 5 ;
+	lv2:microVersion 2 ;
+	rdfs:seeAlso <units.ttl> .
+
diff --git a/ns/extensions/units/units.ttl b/ns/extensions/units/units.ttl
new file mode 100644
index 0000000..ccd5cf4
--- /dev/null
+++ b/ns/extensions/units/units.ttl
@@ -0,0 +1,346 @@
+# LV2 Units Extension
+# Copyright 2009-2011 David Robillard
+# Copyright 2007 Steve Harris
+#
+# 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 units: <http://lv2plug.in/ns/extensions/units#> .
+@prefix lv2:   <http://lv2plug.in/ns/lv2core#> .
+@prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix doap:  <http://usefulinc.com/ns/doap#> .
+@prefix foaf:  <http://xmlns.com/foaf/0.1/> .
+
+<http://lv2plug.in/ns/extensions/units>
+    a lv2:Specification ;
+    doap:name "LV2 Units" ;
+    doap:shortdesc "Units for LV2 values." ;
+    doap:created "2007-02-06" ;
+    doap:homepage <http://lv2plug.in/ns/extensions/units> ;
+    doap:license <http://opensource.org/licenses/isc-license> ;
+    doap:release [
+        doap:revision "5.2" ;
+        doap:created "2011-08-21"
+    ] ;
+    doap:maintainer [
+        a foaf:Person ;
+        rdfs:seeAlso <http://plugin.org.uk/swh.xrdf> ;
+        foaf:homepage <http://plugin.org.uk/> ;
+        foaf:mbox_sha1sum "44bc4fed584a2d1ac8fc55206db67656165d67fd" ;
+        foaf:name "Steve Harris"
+    ], [
+        a foaf:Person ;
+        rdfs:seeAlso <http://drobilla.net/drobilla.rdf> ;
+        foaf:homepage <http://drobilla.net/> ;
+        foaf:name "David Robillard"
+    ] ;
+    lv2:documentation """
+<p>This extension defines a number of units for use in audio processing.</p>
+
+<p>For example, to say that a gain port's value is in decibels (units:db)</p>
+<pre class="turtle-code">
+@prefix :   &lt;http://lv2plug.in/ns/extensions/units#&gt; .
+@prefix eg: &lt;http://example.org/&gt; .
+
+eg:plugin lv2:port [
+    a            lv2:ControlRateInputPort ;
+    lv2:datatype lv2:Float ;
+    lv2:index    0 ;
+    lv2:symbol   "gain" ;
+    lv2:name     "gain" ;
+    :unit        :db
+] .
+</pre>
+
+<p>Using the same form, plugins may also specify one-off units inline, to give
+better display hints to hosts:</p>
+<pre class="turtle-code">
+eg:plugin lv2:port [
+    a            lv2:ControlRateInputPort ;
+    lv2:datatype lv2:Float ;
+    lv2:index    0 ;
+    lv2:symbol   "frob" ;
+    lv2:name     "frob level" ;
+    units:unit [
+        a            units:Unit ;
+        units:name   "frobnication" ;
+        units:symbol "fr" ;
+        units:render "%f f"
+    ]
+] .
+</pre>
+
+<p>Units are defined by a number of properties:</p>
+<dl>
+<dt>units:name</dt>
+<dd>A display name for the unit (eg. decibels)</dd>
+<dt>units:symbol</dt>
+<dd>The abbreviated symbol for the unit (eg. dB)</dd>
+<dt>units:render</dt>
+<dd>A printf(3) string to be used to render the numerical value (eg. \"%f dB\")</dd>
+<dt>units:conversion</dt>
+<dd>Defines a conversion into another unit, commonly the SI unit for the
+unit class (eg. units:conversion [ units:to units:m ; units:factor 1000 ]).
+conversions are expressed as either factors (multiplicand for the conversion)
+or offsets (addend for the conversion).</dd>
+</dl>
+""" .
+
+units:Unit a rdfs:Class ;
+    rdfs:comment "A unit for LV2 port data" .
+
+units:unit
+    a rdf:Property ;
+    rdfs:domain lv2:Port ;
+    rdfs:range units:Unit ;
+    rdfs:comment "Relates a port to the unit of its data" .
+
+units:s a units:Unit ;
+    units:conversion [
+        units:factor 0.0166666666 ;
+        units:to units:min
+    ] ;
+    units:name "second" ;
+    units:prefixConversion [
+        units:factor 1000 ;
+        units:to units:ms
+    ] ;
+    units:render "%f s" ;
+    units:symbol "s" .
+
+units:ms a units:Unit ;
+    units:name "millisecond" ;
+    units:prefixConversion [
+        units:factor 0.001 ;
+        units:to units:s
+    ] ;
+    units:render "%f ms" ;
+    units:symbol "ms" .
+
+units:min a units:Unit ;
+    units:conversion [
+        units:factor 60.0 ;
+        units:to units:s
+    ] ;
+    units:name "minute" ;
+    units:render "%f mins" ;
+    units:symbol "min" .
+
+units:bar a units:Unit ;
+    units:name "bar" ;
+    units:render "%f bars" ;
+    units:symbol "bars" .
+
+units:beat a units:Unit ;
+    units:name "beat" ;
+    units:render "%f beats" ;
+    units:symbol "beats" .
+
+units:m a units:Unit ;
+    units:conversion [
+        units:factor 39.37 ;
+        units:to units:inch
+    ] ;
+    units:name "metre" ;
+    units:prefixConversion [
+        units:factor 100 ;
+        units:to units:cm
+    ], [
+        units:factor 1000 ;
+        units:to units:mm
+    ], [
+        units:factor 0.001 ;
+        units:to units:km
+    ] ;
+    units:render "%f m" ;
+    units:symbol "m" .
+
+units:cm a units:Unit ;
+    units:conversion [
+        units:factor 0.3937 ;
+        units:to units:inch
+    ] ;
+    units:name "centimetre" ;
+    units:prefixConversion [
+        units:factor 0.01 ;
+        units:to units:m
+    ], [
+        units:factor 10 ;
+        units:to units:mm
+    ], [
+        units:factor 0.00001 ;
+        units:to units:km
+    ] ;
+    units:render "%f cm" ;
+    units:symbol "cm" .
+
+units:mm a units:Unit ;
+    units:conversion [
+        units:factor 0.03937 ;
+        units:to units:inch
+    ] ;
+    units:name "millimetre" ;
+    units:prefixConversion [
+        units:factor 0.001 ;
+        units:to units:m
+    ], [
+        units:factor 0.1 ;
+        units:to units:cm
+    ], [
+        units:factor 0.000001 ;
+        units:to units:km
+    ] ;
+    units:render "%f mm" ;
+    units:symbol "mm" .
+
+units:km a units:Unit ;
+    units:conversion [
+        units:factor 0.62138818 ;
+        units:to units:mile
+    ] ;
+    units:name "kilometre" ;
+    units:prefixConversion [
+        units:factor 1000 ;
+        units:to units:m
+    ], [
+        units:factor 100000 ;
+        units:to units:cm
+    ], [
+        units:factor 1000000 ;
+        units:to units:mm
+    ] ;
+    units:render "%f km" ;
+    units:symbol "km" .
+
+units:inch a units:Unit ;
+    units:conversion [
+        units:factor 2.54 ;
+        units:to units:cm
+    ] ;
+    units:name "inch" ;
+    units:render "%f\"" ;
+    units:symbol "in" .
+
+units:mile a units:Unit ;
+    units:conversion [
+        units:factor 1.6093 ;
+        units:to units:km
+    ] ;
+    units:name "mile" ;
+    units:render "%f mi" ;
+    units:symbol "mi" .
+
+units:db a units:Unit ;
+    units:name "decibel" ;
+    units:render "%f dB" ;
+    units:symbol "dB" .
+
+units:pc a units:Unit ;
+    units:conversion [
+        units:factor 0.01 ;
+        units:to units:coef
+    ] ;
+    units:name "percent" ;
+    units:render "%f%%" ;
+    units:symbol "%" .
+
+units:coef a units:Unit ;
+    units:conversion [
+        units:factor 100 ;
+        units:to units:pc
+    ] ;
+    units:name "coefficient" ;
+    units:render "* %f" ;
+    units:symbol "" .
+
+units:hz a units:Unit ;
+    units:name "hertz" ;
+    units:prefixConversion [
+        units:factor 0.001 ;
+        units:to units:khz
+    ], [
+        units:factor 0.000001 ;
+        units:to units:mhz
+    ] ;
+    units:render "%f Hz" ;
+    units:symbol "Hz" .
+
+units:khz a units:Unit ;
+    units:name "kilohertz" ;
+    units:prefixConversion [
+        units:factor 1000 ;
+        units:to units:hz
+    ], [
+        units:factor 0.001 ;
+        units:to units:mhz
+    ] ;
+    units:render "%f kHz" ;
+    units:symbol "kHz" .
+
+units:mhz a units:Unit ;
+    units:name "megahertz" ;
+    units:prefixConversion [
+        units:factor 1000000 ;
+        units:to units:hz
+    ], [
+        units:factor 0.001 ;
+        units:to units:khz
+    ] ;
+    units:render "%f MHz" ;
+    units:symbol "MHz" .
+
+units:bpm a units:Unit ;
+    units:name "beats per minute" ;
+    units:prefixConversion [
+        units:factor 0.0166666666 ;
+        units:to units:hz
+    ] ;
+    units:render "%f BPM" ;
+    units:symbol "BPM" .
+
+units:oct a units:Unit ;
+    units:conversion [
+        units:factor 12.0 ;
+        units:to units:semitone12TET
+    ] ;
+    units:name "octaves" ;
+    units:render "%f octaves" ;
+    units:symbol "oct" .
+
+units:cent a units:Unit ;
+    units:conversion [
+        units:factor 0.01 ;
+        units:to units:semitone12TET
+    ] ;
+    units:name "cent" ;
+    units:render "%f ct" ;
+    units:symbol "ct" .
+
+units:semitone12TET a units:Unit ;
+    units:conversion [
+        units:factor 0.083333333 ;
+        units:to units:oct
+    ] ;
+    units:name "semitone" ;
+    units:render "%f semi" ;
+    units:symbol "semi" .
+
+units:degree a units:Unit ;
+    units:name "degree" ;
+    units:render "%f deg" ;
+    units:symbol "deg" .
+
+units:midiNote a units:Unit ;
+    units:name "MIDI note" ;
+    units:render "MIDI note %d" ;
+    units:symbol "note" .
diff --git a/ns/extensions/units/waf b/ns/extensions/units/waf
new file mode 120000
index 0000000..917d5c5
--- /dev/null
+++ b/ns/extensions/units/waf
@@ -0,0 +1 @@
+../../../waf
\ No newline at end of file
diff --git a/ns/extensions/units/wscript b/ns/extensions/units/wscript
new file mode 120000
index 0000000..cf8cbae
--- /dev/null
+++ b/ns/extensions/units/wscript
@@ -0,0 +1 @@
+../../../ext.wscript
\ No newline at end of file