4 files changed, 180 insertions, 0 deletions
diff --git a/lv2/resize-port/lv2-resize-port.doap.ttl b/lv2/resize-port/lv2-resize-port.doap.ttl
new file mode 100644
index 0000000..49ab3cb
--- /dev/null
+++ b/lv2/resize-port/lv2-resize-port.doap.ttl
@@ -0,0 +1,22 @@
+@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://lv2plug.in/ns/ext/resize-port>
+	a doap:Project ;
+	doap:name "LV2 Resize Port" ;
+	doap:shortdesc "Dynamically sized LV2 port buffers." ;
+	doap:created "2007-00-00" ;
+	doap:developer <http://drobilla.net/drobilla#me> ;
+	doap:release [
+		doap:revision "1.0" ;
+		doap:created "2012-04-17" ;
+		doap:file-release <http://lv2plug.in/spec/lv2-1.0.0.tar.bz2> ;
+		dcs:blame <http://drobilla.net/drobilla#me> ;
+		dcs:changeset [
+			dcs:item [
+				rdfs:label "Initial release."
+			]
+		]
+	] .
diff --git a/lv2/resize-port/manifest.ttl b/lv2/resize-port/manifest.ttl
new file mode 100644
index 0000000..21569ae
--- /dev/null
+++ b/lv2/resize-port/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/ext/resize-port>
+	a lv2:Specification ;
+	lv2:minorVersion 1 ;
+	lv2:microVersion 0 ;
+	rdfs:seeAlso <resize-port.ttl> .
+
diff --git a/lv2/resize-port/resize-port.h b/lv2/resize-port/resize-port.h
new file mode 100644
index 0000000..34bfe61
--- /dev/null
+++ b/lv2/resize-port/resize-port.h
@@ -0,0 +1,85 @@
+/*
+  Copyright 2007-2016 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.
+*/
+
+/**
+   @defgroup resize-port Resize Port
+
+   Dynamically sized LV2 port buffers.
+
+   @{
+*/
+
+#ifndef LV2_RESIZE_PORT_H
+#define LV2_RESIZE_PORT_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#define LV2_RESIZE_PORT_URI    "http://lv2plug.in/ns/ext/resize-port"  ///< http://lv2plug.in/ns/ext/resize-port
+#define LV2_RESIZE_PORT_PREFIX LV2_RESIZE_PORT_URI "#"                 ///< http://lv2plug.in/ns/ext/resize-port#
+
+#define LV2_RESIZE_PORT__asLargeAs   LV2_RESIZE_PORT_PREFIX "asLargeAs"    ///< http://lv2plug.in/ns/ext/port#asLargeAs
+#define LV2_RESIZE_PORT__minimumSize LV2_RESIZE_PORT_PREFIX "minimumSize"  ///< http://lv2plug.in/ns/ext/port#minimumSize
+#define LV2_RESIZE_PORT__resize      LV2_RESIZE_PORT_PREFIX "resize"       ///< http://lv2plug.in/ns/ext/port#resize
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** A status code for state functions. */
+typedef enum {
+	LV2_RESIZE_PORT_SUCCESS      = 0,  /**< Completed successfully. */
+	LV2_RESIZE_PORT_ERR_UNKNOWN  = 1,  /**< Unknown error. */
+	LV2_RESIZE_PORT_ERR_NO_SPACE = 2   /**< Insufficient space. */
+} LV2_Resize_Port_Status;
+
+/** Opaque data for resize method. */
+typedef void* LV2_Resize_Port_Feature_Data;
+
+/** Host feature to allow plugins to resize their port buffers. */
+typedef struct {
+	/** Opaque data for resize method. */
+	LV2_Resize_Port_Feature_Data data;
+
+	/**
+	   Resize a port buffer to at least `size` bytes.
+
+	   This function MAY return an error, in which case the port buffer was not
+	   resized and the port is still connected to the same location.  Plugins
+	   MUST gracefully handle this situation.
+
+	   This function is in the audio threading class.
+
+	   The host MUST preserve the contents of the port buffer when resizing.
+
+	   Plugins MAY resize a port many times in a single run callback.  Hosts
+	   SHOULD make this as inexpensive as possible.
+	*/
+	LV2_Resize_Port_Status (*resize)(LV2_Resize_Port_Feature_Data data,
+	                                 uint32_t                     index,
+	                                 size_t                       size);
+} LV2_Resize_Port_Resize;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_RESIZE_PORT_H */
+
+/**
+   @}
+*/
diff --git a/lv2/resize-port/resize-port.ttl b/lv2/resize-port/resize-port.ttl
new file mode 100644
index 0000000..6688f90
--- /dev/null
+++ b/lv2/resize-port/resize-port.ttl
@@ -0,0 +1,64 @@
+@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 rsz:  <http://lv2plug.in/ns/ext/resize-port#> .
+@prefix xsd:  <http://www.w3.org/2001/XMLSchema#> .
+
+<http://lv2plug.in/ns/ext/resize-port>
+	a lv2:Specification ;
+	rdfs:seeAlso <resize-port.h> ,
+		<lv2-resize-port.doap.ttl> ;
+	lv2:documentation """
+<p>This extension defines a feature, rsz:resize, which allows plugins to
+dynamically resize their output port buffers.</p>
+
+<p>In addition to the dynamic feature, there are properties which describe the
+space required for a particular port buffer which can be used statically in
+data files.</p>
+""" .
+
+rsz:resize
+	a lv2:Feature ;
+	lv2:documentation """
+<p>A feature to resize output port buffers in LV2_Plugin_Descriptor::run().</p>
+
+<p>To support this feature, the host must pass an LV2_Feature to the plugin's
+instantiate method with URI LV2_RESIZE_PORT__resize and a pointer to a
+LV2_Resize_Port_Resize structure.  This structure provides a resize_port
+function which plugins may use to resize output port buffers as necessary.</p>
+""" .
+
+rsz:asLargeAs
+	a rdf:Property ,
+		owl:DatatypeProperty ;
+	rdfs:domain lv2:Port ;
+	rdfs:range lv2:Symbol ;
+	rdfs:label "as large as" ;
+	lv2:documentation """
+<p>Indicates that a port requires at least as much buffer space as the port
+with the given symbol on the same plugin instance.  This may be used for any
+ports, but is generally most useful to indicate an output port must be at least
+as large as some input port (because it will copy from it).  If a port is
+asLargeAs several ports, it is asLargeAs the largest such port (not the sum of
+those ports' sizes).</p>
+
+<p>The host guarantees that whenever an ObjectPort's run method is called, any
+output O that is obj:asLargeAs an input I is connected to a buffer large enough
+to copy I, or NULL if the port is lv2:connectionOptional.</p>
+""" .
+
+rsz:minimumSize
+	a rdf:Property ,
+		owl:DatatypeProperty ,
+		owl:FunctionalProperty ;
+	rdfs:domain lv2:Port ;
+	rdfs:range xsd:nonNegativeInteger ;
+	rdfs:label "minimum size" ;
+	rdfs:comment """
+Indicates that a port requires a buffer at least this large, in bytes.  Any
+host that supports the resize-port feature MUST connect any port with a
+minimumSize specified to a buffer at least as large as the value given for this
+property.  Any host, especially those that do NOT support dynamic port
+resizing, SHOULD do so or reduced functionality may result.
+""" .