# Membrane Realtimer plugin

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Membrane plugin for limiting playback speed to realtime, according to buffers' timestamps.

It is a part of [Membrane Multimedia Framework](

## Installation

The package can be installed by adding `membrane_realtimer_plugin` to your list of dependencies in `mix.exs`:

def deps do
	{:membrane_realtimer_plugin, "~> 0.9.0"}

## Usage

The following pipeline downloads a sample h264 video via HTTP and sends it in realtime via RTP.
It requires [RTP plugin](, [RTP H264 plugin]( and [UDP plugin]( to work.

defmodule Example.Pipeline do
  use Membrane.Pipeline

  @ssrc 1234

  @impl true
  def handle_init(_ctx, _opts) do
    structure = [
      child(:source, %Membrane.Hackney.Source{
        location: "",
        hackney_opts: [follow_redirect: true]
      |> child(:parser, %Membrane.H264.FFmpeg.Parser{framerate: {30, 1}, alignment: :nal})
      |> via_in(Pad.ref(:input, @ssrc), options: [payloader: Membrane.RTP.H264.Payloader])
      |> child(:rtp, Membrane.RTP.SessionBin)
      |> via_out(Pad.ref(:rtp_output, @ssrc), options: [encoding: :H264])
      |> child(:realtimer, Membrane.Realtimer)
      |> child(:sink, %Membrane.UDP.Sink{
        destination_port_no: 5000,
        destination_address: {127, 0, 0, 1}

    {[spec: structure, playback: :playing], %{}}

## Copyright and License

Copyright 2020, [Software Mansion](

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Licensed under the [Apache License, Version 2.0](LICENSE)