Membrane FFmpeg SWResample plugin

Plugin performing audio conversion, resampling and channel mixing, using SWResample module of FFmpeg library.

It is a part of Membrane Multimedia Framework.

Installation

Add the following line to your deps in mix.exs. Run mix deps.get.

	{:membrane_ffmpeg_swresample_plugin, "~> 0.14.0"}

You also need to have FFmpeg library installed.

Sample usage

defmodule Resampling.Pipeline do
  use Membrane.Pipeline

  alias Membrane.Element.File
  alias Membrane.FFmpeg.SWResample.Converter
  alias Membrane.RawAudio

  @doc false
  @impl true
  def handle_init(_) do
    children = [
      file_src: %File.Source{location: "/tmp/input.raw"},
      converter: %Converter{
        input_caps: %RawAudio{channels: 2, sample_format: :s24le, sample_rate: 48_000},
        output_caps: %RawAudio{channels: 2, sample_format: :f32le, sample_rate: 44_100}
      },
      file_sink: %File.Sink{location: "/tmp/output.raw"},
    ]

    links = [
      link(:file_src)
      |> to(:converter)
      |> to(:file_sink)
    ]

    {{:ok, spec: %ParentSpec{children: children, links: links}}, %{}}
  end
end

Copyright and License

Licensed under the Apache License, Version 2.0