UDP stream copier. Now you can pass in a destination IP and port: $ ruby io_copier.rb 192.168.10.5 1234

gistfile1.rb

# I was able to stream an .m4v file using VLC using this (just to verify it works).
#
# 1. Use VLC's Streaming/Exporting Wizard:
#   a) Stream to network
#   b) Select a stream (choose the file you want to send)
#   c) Streaming method: UDP unicast; destination 127.0.0.1
#   d) (Don't transcode.  ...well, unless you want to I guess?)
#   e) Encapsulation format: MPEG_TS (my only choice)
#   f) (No additional options)
# 2. Run this script.  It takes 2 args: destination_ip, destination_port.
#   [destination_port] should be the IP of the box used in step 3 below.
# 3. On another box, in VLC: 
#   a) Open Network
#   b) Open RTP/UDP Stream
#   c) Protocol = UDP; Mode = Unicast; Port = [destination_port from above]
# 4. Give it a few seconds to start going...

require 'socket'

Thread.abort_on_exception = true


class IOCopier
  def initialize(destination_ip, destination_port)
    @ip = destination_ip
    @port = destination_port
    @copier = UDPSocket.open
  end

  def write(data)
    #puts "WRITER: sending data to #{@ip}:#{@port} with size: #{data.size}"
    #puts "WRITER: 50th byte: #{data[50]}"
    @copier.send(data, 0, @ip, @port)
  end
end

destination_ip, destination_port = *ARGV.dup

# This just validates that the copier is actually copying.
=begin
Thread.start do
  end_point = UDPSocket.new
  end_point.bind(destination_ip, destination_port)

  loop do
    data, _ = end_point.recvfrom(1500)
    puts "END POINT: received data with size: #{data.size}"
    puts "END POINT: 50th byte: #{data[50]}"
  end
end
=end


# This does the copying.
Thread.start do
  reader = UDPSocket.new
  reader.bind '127.0.0.1', 1234
  writer = IOCopier.new(destination_ip, destination_port)

  loop do
    IO.copy_stream(reader, writer)
  end
end


sleep 1000