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+..
+ Copyright 2020-2022 David Robillard <d@drobilla.net>
+ SPDX-License-Identifier: ISC
+
+.. default-domain:: c
+.. highlight:: c
+
+#######
+Plugins
+#######
+
+After bundles are loaded,
+all discovered plugins can be accessed via :func:`lilv_world_get_all_plugins`:
+
+.. code-block:: c
+
+ LilvPlugins* plugins = lilv_world_get_all_plugins(world);
+
+:struct:`LilvPlugins` is a collection of plugins that can be accessed by index or plugin URI.
+The convenicne macro :macro:`LILV_FOREACH` is provided to make iterating over collections simple.
+For example, to print the URI of every plugin:
+
+.. code-block:: c
+
+ LILV_FOREACH (plugins, i, list) {
+ const LilvPlugin* p = lilv_plugins_get(list, i);
+ printf("%s\n", lilv_node_as_uri(lilv_plugin_get_uri(p)));
+ }
+ }
+
+More typically,
+you want to load a specific plugin,
+which can be done with :func:`lilv_plugins_get_by_uri`:
+
+.. code-block:: c
+
+ LilvNode* plugin_uri = lilv_new_uri(world, "http://example.org/Osc");
+
+ const LilvPlugin* plugin = lilv_plugins_get_by_uri(list, plugin_uri);
+
+:struct:`LilvPlugin` has various accessors that can be used to get information about the plugin.
+See the :doc:`API reference <api/lilv_plugin>` for details.
+
+*********
+Instances
+*********
+
+:struct:`LilvPlugin` only represents the data of the plugin,
+it does not load or access the actual plugin code.
+To do that, you must instantiate a plugin to create :struct:`LilvInstance`:
+
+.. code-block:: c
+
+ LilvInstance* instance = lilv_plugin_instantiate(plugin, 48000.0, NULL);
+
+Connecting Ports
+================
+
+Before running a plugin instance, its ports must be connected to some data.
+This is done with :func:`lilv_instance_connect_port`.
+Assuming the plugins has two control input ports and one audio output port,
+in that order:
+
+.. code-block:: c
+
+ float control_in_1 = 0.0f;
+ float control_in_2 = 0.0f;
+
+ float audio_out[128];
+
+ lilv_instance_connect_port(instance, 0, &control_in_1);
+ lilv_instance_connect_port(instance, 1, &control_in_2);
+ lilv_instance_connect_port(instance, 2, &audio_out);
+
+Processing Data
+===============
+
+Once the ports are connected, the instance can be activated and run:
+
+.. code-block:: c
+
+ lilv_instance_activate(instance);
+
+ lilv_instance_run(instance, 128);
+ // Copy buffers around and probably run several times here...
+
+ lilv_instance_deactivate(instance);
+
+Once you are done with an instance,
+it can be destroyed with :func:`lilv_instance_free`:
+
+.. code-block:: c
+
+ lilv_instance_free(instance);