webcam-photos-with-ruby

	# require 'av_capture'
	#
	# # Create a recording session
	# session = AVCapture::Session.new
	#
	# # Find the first video capable device
	# dev = AVCapture.devices.find(&:video?)
	#
	# # Output the camera's name
	# $stderr.puts dev.name
	#
	# # Connect the camera to the recording session
	# session.run_with(dev) do |connection|
	#
	# # Capture an image and write it to $stdout
	# $stdout.write connection.capture
	# end
	# require 'av_capture'
	# require 'io/console'
	#
	# session = AVCapture::Session.new
	# dev = AVCapture.devices.find(&:video?)
	#
	# session.run_with(dev) do |connection|
	# loop do
	# case $stdin.getch
	# when 'q' then break # quit when you hit 'q'
	# else
	# IO.popen("open -g -f -a /Applications/Preview.app", 'w') do |f|
	# f.write connection.capture
	# end
	# end
	# end
	# end
	# Server code
	# Here is our server code:
	require 'av_capture'
	require 'drb'
	class PhotoServer
	attr_reader :photo_request, :photo_response
	def initialize
	@photo_request = Queue.new
	@photo_response = Queue.new
	@mutex = Mutex.new
	end
	def take_photo
	@mutex.synchronize do
	photo_request << "x"
	photo_response.pop
	end
	end
	end
	server = PhotoServer.new
	Thread.new do
	session = AVCapture::Session.new
	dev = AVCapture.devices.find(&:video?)
	session.run_with(dev) do |connection|
	while server.photo_request.pop
	server.photo_response.push connection.capture
	end
	end
	end
	URI = "druby://localhost:8787"
	DRb.start_service URI, server
	DRb.thread.join
	# Client Code
	# ------------------------------------------------
	require 'drb'
	SERVER_URI = "druby://localhost:8787"
	photoserver = DRbObject.new_with_uri SERVER_URI
	print photoserver.take_photo
	# ------------------------------
	# Running the code
	# In one terminal, run the server code like this:
	#
	# $ ruby server.rb
	# Then in another terminal, run the client code like this:
	# $ ruby client.rb | open -f -a /Applications/Preview.app
	# You should have a photo show up in Preview.app. You can kill the server program by doing Ctrl-C.
	http://tenderlovemaking.com/2014/03/26/webcam-photos-with-ruby.html

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