# Membrane Funnel plugin
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Membrane plugin for merging multiple input streams into a single output.
It can be used for collecting data from multiple inputs and sending it through one output.
It is part of [Membrane Multimedia Framework](https://membraneframework.org).
## Installation
The package can be installed by adding `membrane_funnel_plugin` to your list of dependencies in `mix.exs`:
```elixir
def deps do
[
{:membrane_funnel_plugin, "~> 0.5.0"}
]
end
```
## Usage
Playing this pipeline should merge two files `a.txt` and `b.txt` into file `c.txt`
```elixir
defmodule FunnelDemo do
use Membrane.Pipeline
def handle_init(_) do
children = [
a_source: %Membrane.File.Source{location: "a.txt"},
b_source: %Membrane.File.Source{location: "b.txt"},
funnel: Membrane.Funnel,
sink: %Membrane.File.Sink{location: "c.txt"}
]
links = [
link(:a_source) |> to(:funnel),
link(:b_source) |> to(:funnel),
link(:funnel) |> to(:sink)
]
spec = %ParentSpec{children: children, links: links}
{{:ok, spec: spec}, %{}}
end
end
```
For more examples please refer to our [echo demo](https://github.com/membraneframework/membrane_demo/tree/echo/webrtc/echo)
where we use funnel plugin to send two RTP streams using the same connection, or our integration
tests.
## Copyright and License
Copyright 2020, [Software Mansion](https://swmansion.com/?utm_source=git&utm_medium=readme&utm_campaign=membrane_funnel_plugin)
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Licensed under the [Apache License, Version 2.0](LICENSE)