/** \page page_modules Modules

A PipeWire module is effectively a PipeWire client in an `.so` file that
shares the \ref pw_context with the loading entity. Usually modules are
loaded when they are listed in the configuration files. For example the
default configuration file loads several modules:

```
context.modules = [
    ...
    # The native communication protocol.
    {   name = libpipewire-module-protocol-native }

    # The profile module. Allows application to access profiler
    # and performance data. It provides an interface that is used
    # by pw-top and pw-profiler.
    {   name = libpipewire-module-profiler }

    # Allows applications to create metadata objects. It creates
    # a factory for Metadata objects.
    {   name = libpipewire-module-metadata }

    # Creates a factory for making devices that run in the
    # context of the PipeWire server.
    {   name = libpipewire-module-spa-device-factory }
    ...
]
```
The matching libraries are:
```
$ ls -1 /usr/lib64/pipewire-0.3/libpipewire-module*
...
/usr/lib64/pipewire-0.3/libpipewire-module-metadata.so
/usr/lib64/pipewire-0.3/libpipewire-module-profiler.so
/usr/lib64/pipewire-0.3/libpipewire-module-protocol-native.so
/usr/lib64/pipewire-0.3/libpipewire-module-spa-device-factory.so
...
```

A module's entry point is the `pipewire__module_init` function, see \ref
PIPEWIRE_SYMBOL_MODULE_INIT.

\code
int pipewire__module_init(struct pw_impl_module *module, const char *args).`
\endcode

See the \ref page_module_example_sink and \ref page_module_example_source
modules for a general oveview of how modules look like.

List of known modules:

- \subpage page_module_access
- \subpage page_module_adapter
- \subpage page_module_avb
- \subpage page_module_client_device
- \subpage page_module_client_node
- \subpage page_module_combine_stream
- \subpage page_module_echo_cancel
- \subpage page_module_example_filter
- \subpage page_module_example_sink
- \subpage page_module_example_source
- \subpage page_module_fallback_sink
- \subpage page_module_ffado_driver
- \subpage page_module_filter_chain
- \subpage page_module_jackdbus_detect
- \subpage page_module_jack_tunnel
- \subpage page_module_link_factory
- \subpage page_module_loopback
- \subpage page_module_metadata
- \subpage page_module_netjack2_driver
- \subpage page_module_netjack2_manager
- \subpage page_module_pipe_tunnel
- \subpage page_module_portal
- \subpage page_module_profiler
- \subpage page_module_protocol_native
- \subpage page_module_protocol_pulse
- \subpage page_module_protocol_simple
- \subpage page_module_pulse_tunnel
- \subpage page_module_raop_sink
- \subpage page_module_raop_discover
- \subpage page_module_roc_sink
- \subpage page_module_roc_source
- \subpage page_module_rtp_sap
- \subpage page_module_rtp_sink
- \subpage page_module_rtp_source
- \subpage page_module_rtp_session
- \subpage page_module_rt
- \subpage page_module_session_manager
- \subpage page_module_vban_recv
- \subpage page_module_vban_send
- \subpage page_module_x11_bell
- \subpage page_module_zeroconf_discover

*/